80815560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:180

約数の個数: 256

約数和(自身を含む): 298598400

約数和(自身を除く): 217782840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 47, 56, 60, 69, 70, 84, 89, 92, 94, 105, 115, 120, 138, 140, 141, 161, 168, 178, 184, 188, 210, 230, 235, 267, 276, 280, 282, 322, 329, 345, 356, 376, 420, 445, 460, 470, 483, 534, 552, 564, 623, 644, 658, 690, 705, 712, 805, 840, 890, 920, 940, 966, 987, 1068, 1081, 1128, 1246, 1288, 1316, 1335, 1380, 1410, 1610, 1645, 1780, 1869, 1880, 1932, 1974, 2047, 2136, 2162, 2415, 2492, 2632, 2670, 2760, 2820, 3115, 3220, 3243, 3290, 3560, 3738, 3864, 3948, 4094, 4183, 4324, 4830, 4935, 4984, 5340, 5405, 5640, 6141, 6230, 6440, 6486, 6580, 7476, 7567, 7896, 8188, 8366, 8648, 9345, 9660, 9870, 10235, 10680, 10810, 12282, 12460, 12549, 12972, 13160, 14329, 14952, 15134, 16215, 16376, 16732, 18690, 19320, 19740, 20470, 20915, 21620, 22701, 24564, 24920, 25098, 25944, 28658, 29281, 30268, 30705, 32430, 33464, 37380, 37835, 39480, 40940, 41830, 42987, 43240, 45402, 49128, 50196, 57316, 58562, 60536, 61410, 62745, 64860, 71645, 74760, 75670, 81880, 83660, 85974, 87843, 90804, 96209, 100392, 113505, 114632, 117124, 122820, 125490, 129720, 143290, 146405, 151340, 167320, 171948, 175686, 181608, 192418, 214935, 227010, 234248, 245640, 250980, 286580, 288627, 292810, 302680, 343896, 351372, 384836, 429870, 439215, 454020, 481045, 501960, 573160, 577254, 585620, 673463, 702744, 769672, 859740, 878430, 908040, 962090, 1154508, 1171240, 1346926, 1443135, 1719480, 1756860, 1924180, 2020389, 2309016, 2693852, 2886270, 3367315, 3513720, 3848360, 4040778, 5387704, 5772540, 6734630, 8081556, 10101945, 11545080, 13469260, 16163112, 20203890, 26938520, 40407780, 80815560]

約数ペア:

[(1, 80815560), (2, 40407780), (3, 26938520), (4, 20203890), (5, 16163112), (6, 13469260), (7, 11545080), (8, 10101945), (10, 8081556), (12, 6734630), (14, 5772540), (15, 5387704), (20, 4040778), (21, 3848360), (23, 3513720), (24, 3367315), (28, 2886270), (30, 2693852), (35, 2309016), (40, 2020389), (42, 1924180), (46, 1756860), (47, 1719480), (56, 1443135), (60, 1346926), (69, 1171240), (70, 1154508), (84, 962090), (89, 908040), (92, 878430), (94, 859740), (105, 769672), (115, 702744), (120, 673463), (138, 585620), (140, 577254), (141, 573160), (161, 501960), (168, 481045), (178, 454020), (184, 439215), (188, 429870), (210, 384836), (230, 351372), (235, 343896), (267, 302680), (276, 292810), (280, 288627), (282, 286580), (322, 250980), (329, 245640), (345, 234248), (356, 227010), (376, 214935), (420, 192418), (445, 181608), (460, 175686), (470, 171948), (483, 167320), (534, 151340), (552, 146405), (564, 143290), (623, 129720), (644, 125490), (658, 122820), (690, 117124), (705, 114632), (712, 113505), (805, 100392), (840, 96209), (890, 90804), (920, 87843), (940, 85974), (966, 83660), (987, 81880), (1068, 75670), (1081, 74760), (1128, 71645), (1246, 64860), (1288, 62745), (1316, 61410), (1335, 60536), (1380, 58562), (1410, 57316), (1610, 50196), (1645, 49128), (1780, 45402), (1869, 43240), (1880, 42987), (1932, 41830), (1974, 40940), (2047, 39480), (2136, 37835), (2162, 37380), (2415, 33464), (2492, 32430), (2632, 30705), (2670, 30268), (2760, 29281), (2820, 28658), (3115, 25944), (3220, 25098), (3243, 24920), (3290, 24564), (3560, 22701), (3738, 21620), (3864, 20915), (3948, 20470), (4094, 19740), (4183, 19320), (4324, 18690), (4830, 16732), (4935, 16376), (4984, 16215), (5340, 15134), (5405, 14952), (5640, 14329), (6141, 13160), (6230, 12972), (6440, 12549), (6486, 12460), (6580, 12282), (7476, 10810), (7567, 10680), (7896, 10235), (8188, 9870), (8366, 9660), (8648, 9345)]