28716660

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:203

約数の個数: 192

約数和(自身を含む): 104509440

約数和(自身を除く): 75792780

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 71, 84, 90, 105, 107, 108, 126, 135, 140, 142, 180, 189, 210, 213, 214, 252, 270, 284, 315, 321, 355, 378, 420, 426, 428, 497, 535, 540, 630, 639, 642, 710, 749, 756, 852, 945, 963, 994, 1065, 1070, 1260, 1278, 1284, 1420, 1491, 1498, 1605, 1890, 1917, 1926, 1988, 2130, 2140, 2247, 2485, 2556, 2889, 2982, 2996, 3195, 3210, 3745, 3780, 3834, 3852, 4260, 4473, 4494, 4815, 4970, 5778, 5964, 6390, 6420, 6741, 7455, 7490, 7597, 7668, 8946, 8988, 9585, 9630, 9940, 11235, 11556, 12780, 13419, 13482, 14445, 14910, 14980, 15194, 17892, 19170, 19260, 20223, 22365, 22470, 22791, 26838, 26964, 28890, 29820, 30388, 33705, 37985, 38340, 40446, 44730, 44940, 45582, 53179, 53676, 57780, 67095, 67410, 68373, 75970, 80892, 89460, 91164, 101115, 106358, 113955, 134190, 134820, 136746, 151940, 159537, 202230, 205119, 212716, 227910, 265895, 268380, 273492, 319074, 341865, 404460, 410238, 455820, 478611, 531790, 638148, 683730, 797685, 820476, 957222, 1025595, 1063580, 1367460, 1435833, 1595370, 1914444, 2051190, 2393055, 2871666, 3190740, 4102380, 4786110, 5743332, 7179165, 9572220, 14358330, 28716660]

約数ペア:

[(1, 28716660), (2, 14358330), (3, 9572220), (4, 7179165), (5, 5743332), (6, 4786110), (7, 4102380), (9, 3190740), (10, 2871666), (12, 2393055), (14, 2051190), (15, 1914444), (18, 1595370), (20, 1435833), (21, 1367460), (27, 1063580), (28, 1025595), (30, 957222), (35, 820476), (36, 797685), (42, 683730), (45, 638148), (54, 531790), (60, 478611), (63, 455820), (70, 410238), (71, 404460), (84, 341865), (90, 319074), (105, 273492), (107, 268380), (108, 265895), (126, 227910), (135, 212716), (140, 205119), (142, 202230), (180, 159537), (189, 151940), (210, 136746), (213, 134820), (214, 134190), (252, 113955), (270, 106358), (284, 101115), (315, 91164), (321, 89460), (355, 80892), (378, 75970), (420, 68373), (426, 67410), (428, 67095), (497, 57780), (535, 53676), (540, 53179), (630, 45582), (639, 44940), (642, 44730), (710, 40446), (749, 38340), (756, 37985), (852, 33705), (945, 30388), (963, 29820), (994, 28890), (1065, 26964), (1070, 26838), (1260, 22791), (1278, 22470), (1284, 22365), (1420, 20223), (1491, 19260), (1498, 19170), (1605, 17892), (1890, 15194), (1917, 14980), (1926, 14910), (1988, 14445), (2130, 13482), (2140, 13419), (2247, 12780), (2485, 11556), (2556, 11235), (2889, 9940), (2982, 9630), (2996, 9585), (3195, 8988), (3210, 8946), (3745, 7668), (3780, 7597), (3834, 7490), (3852, 7455), (4260, 6741), (4473, 6420), (4494, 6390), (4815, 5964), (4970, 5778)]