1247638980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:279

約数の個数: 288

約数和(自身を含む): 4247147520

約数和(自身を除く): 2999508540

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 43, 49, 60, 70, 71, 84, 86, 98, 105, 129, 139, 140, 142, 147, 172, 196, 210, 213, 215, 245, 258, 278, 284, 294, 301, 355, 417, 420, 426, 430, 490, 497, 516, 556, 588, 602, 645, 695, 710, 735, 834, 852, 860, 903, 973, 980, 994, 1065, 1204, 1290, 1390, 1420, 1470, 1491, 1505, 1668, 1806, 1946, 1988, 2085, 2107, 2130, 2485, 2580, 2780, 2919, 2940, 2982, 3010, 3053, 3479, 3612, 3892, 4170, 4214, 4260, 4515, 4865, 4970, 5838, 5964, 5977, 6020, 6106, 6321, 6811, 6958, 7455, 8340, 8428, 9030, 9159, 9730, 9869, 9940, 10437, 10535, 11676, 11954, 12212, 12642, 13622, 13916, 14595, 14910, 15265, 17395, 17931, 18060, 18318, 19460, 19738, 20433, 20874, 21070, 21371, 23908, 25284, 27244, 29190, 29607, 29820, 29885, 30530, 31605, 34055, 34790, 35862, 36636, 39476, 40866, 41748, 41839, 42140, 42742, 45795, 49345, 52185, 58380, 59214, 59770, 61060, 63210, 64113, 68110, 69083, 69580, 71724, 81732, 83678, 85484, 89655, 91590, 98690, 102165, 104370, 106855, 118428, 119540, 125517, 126420, 128226, 136220, 138166, 148035, 149597, 167356, 179310, 183180, 197380, 204330, 207249, 208740, 209195, 213710, 251034, 256452, 276332, 292873, 296070, 299194, 320565, 345415, 358620, 408660, 414498, 418390, 424367, 427420, 448791, 483581, 502068, 585746, 592140, 598388, 627585, 641130, 690830, 747985, 828996, 836780, 848734, 878619, 897582, 967162, 1036245, 1171492, 1255170, 1273101, 1282260, 1381660, 1450743, 1464365, 1495970, 1697468, 1757238, 1795164, 1934324, 2072490, 2121835, 2243955, 2417905, 2510340, 2546202, 2901486, 2928730, 2970569, 2991940, 3514476, 4144980, 4243670, 4393095, 4487910, 4835810, 5092404, 5802972, 5857460, 5941138, 6365505, 7253715, 8487340, 8786190, 8911707, 8975820, 9671620, 11882276, 12731010, 14507430, 14852845, 17572380, 17823414, 20793983, 25462020, 29014860, 29705690, 35646828, 41587966, 44558535, 59411380, 62381949, 83175932, 89117070, 103969915, 124763898, 178234140, 207939830, 249527796, 311909745, 415879660, 623819490, 1247638980]

約数ペア:

[(1, 1247638980), (2, 623819490), (3, 415879660), (4, 311909745), (5, 249527796), (6, 207939830), (7, 178234140), (10, 124763898), (12, 103969915), (14, 89117070), (15, 83175932), (20, 62381949), (21, 59411380), (28, 44558535), (30, 41587966), (35, 35646828), (42, 29705690), (43, 29014860), (49, 25462020), (60, 20793983), (70, 17823414), (71, 17572380), (84, 14852845), (86, 14507430), (98, 12731010), (105, 11882276), (129, 9671620), (139, 8975820), (140, 8911707), (142, 8786190), (147, 8487340), (172, 7253715), (196, 6365505), (210, 5941138), (213, 5857460), (215, 5802972), (245, 5092404), (258, 4835810), (278, 4487910), (284, 4393095), (294, 4243670), (301, 4144980), (355, 3514476), (417, 2991940), (420, 2970569), (426, 2928730), (430, 2901486), (490, 2546202), (497, 2510340), (516, 2417905), (556, 2243955), (588, 2121835), (602, 2072490), (645, 1934324), (695, 1795164), (710, 1757238), (735, 1697468), (834, 1495970), (852, 1464365), (860, 1450743), (903, 1381660), (973, 1282260), (980, 1273101), (994, 1255170), (1065, 1171492), (1204, 1036245), (1290, 967162), (1390, 897582), (1420, 878619), (1470, 848734), (1491, 836780), (1505, 828996), (1668, 747985), (1806, 690830), (1946, 641130), (1988, 627585), (2085, 598388), (2107, 592140), (2130, 585746), (2485, 502068), (2580, 483581), (2780, 448791), (2919, 427420), (2940, 424367), (2982, 418390), (3010, 414498), (3053, 408660), (3479, 358620), (3612, 345415), (3892, 320565), (4170, 299194), (4214, 296070), (4260, 292873), (4515, 276332), (4865, 256452), (4970, 251034), (5838, 213710), (5964, 209195), (5977, 208740), (6020, 207249), (6106, 204330), (6321, 197380), (6811, 183180), (6958, 179310), (7455, 167356), (8340, 149597), (8428, 148035), (9030, 138166), (9159, 136220), (9730, 128226), (9869, 126420), (9940, 125517), (10437, 119540), (10535, 118428), (11676, 106855), (11954, 104370), (12212, 102165), (12642, 98690), (13622, 91590), (13916, 89655), (14595, 85484), (14910, 83678), (15265, 81732), (17395, 71724), (17931, 69580), (18060, 69083), (18318, 68110), (19460, 64113), (19738, 63210), (20433, 61060), (20874, 59770), (21070, 59214), (21371, 58380), (23908, 52185), (25284, 49345), (27244, 45795), (29190, 42742), (29607, 42140), (29820, 41839), (29885, 41748), (30530, 40866), (31605, 39476), (34055, 36636), (34790, 35862)]