28856080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^3\times {\mathrm{271}}^1$

素因数の和:317

約数の個数: 80

約数和(自身を含む): 74066688

約数和(自身を除く): 45210608

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 271, 440, 484, 542, 605, 880, 968, 1084, 1210, 1331, 1355, 1936, 2168, 2420, 2662, 2710, 2981, 4336, 4840, 5324, 5420, 5962, 6655, 9680, 10648, 10840, 11924, 13310, 14905, 21296, 21680, 23848, 26620, 29810, 32791, 47696, 53240, 59620, 65582, 106480, 119240, 131164, 163955, 238480, 262328, 327910, 360701, 524656, 655820, 721402, 1311640, 1442804, 1803505, 2623280, 2885608, 3607010, 5771216, 7214020, 14428040, 28856080]

約数ペア:

[(1, 28856080), (2, 14428040), (4, 7214020), (5, 5771216), (8, 3607010), (10, 2885608), (11, 2623280), (16, 1803505), (20, 1442804), (22, 1311640), (40, 721402), (44, 655820), (55, 524656), (80, 360701), (88, 327910), (110, 262328), (121, 238480), (176, 163955), (220, 131164), (242, 119240), (271, 106480), (440, 65582), (484, 59620), (542, 53240), (605, 47696), (880, 32791), (968, 29810), (1084, 26620), (1210, 23848), (1331, 21680), (1355, 21296), (1936, 14905), (2168, 13310), (2420, 11924), (2662, 10840), (2710, 10648), (2981, 9680), (4336, 6655), (4840, 5962), (5324, 5420)]