27931640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{199}}^1$

素因数の和:261

約数の個数: 96

約数和(自身を含む): 71820000

約数和(自身を除く): 43888360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 44, 55, 58, 88, 110, 116, 121, 145, 199, 220, 232, 242, 290, 319, 398, 440, 484, 580, 605, 638, 796, 968, 995, 1160, 1210, 1276, 1592, 1595, 1990, 2189, 2420, 2552, 3190, 3509, 3980, 4378, 4840, 5771, 6380, 7018, 7960, 8756, 10945, 11542, 12760, 14036, 17512, 17545, 21890, 23084, 24079, 28072, 28855, 35090, 43780, 46168, 48158, 57710, 63481, 70180, 87560, 96316, 115420, 120395, 126962, 140360, 192632, 230840, 240790, 253924, 317405, 481580, 507848, 634810, 698291, 963160, 1269620, 1396582, 2539240, 2793164, 3491455, 5586328, 6982910, 13965820, 27931640]

約数ペア:

[(1, 27931640), (2, 13965820), (4, 6982910), (5, 5586328), (8, 3491455), (10, 2793164), (11, 2539240), (20, 1396582), (22, 1269620), (29, 963160), (40, 698291), (44, 634810), (55, 507848), (58, 481580), (88, 317405), (110, 253924), (116, 240790), (121, 230840), (145, 192632), (199, 140360), (220, 126962), (232, 120395), (242, 115420), (290, 96316), (319, 87560), (398, 70180), (440, 63481), (484, 57710), (580, 48158), (605, 46168), (638, 43780), (796, 35090), (968, 28855), (995, 28072), (1160, 24079), (1210, 23084), (1276, 21890), (1592, 17545), (1595, 17512), (1990, 14036), (2189, 12760), (2420, 11542), (2552, 10945), (3190, 8756), (3509, 7960), (3980, 7018), (4378, 6380), (4840, 5771)]