20757648

素因数分解:

$2^4\times 3^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:256

約数の個数: 80

約数和(自身を含む): 55978560

約数和(自身を除く): 35220912

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 43, 48, 86, 89, 113, 129, 172, 178, 226, 258, 267, 339, 344, 356, 452, 516, 534, 678, 688, 712, 904, 1032, 1068, 1356, 1424, 1808, 2064, 2136, 2712, 3827, 4272, 4859, 5424, 7654, 9718, 10057, 11481, 14577, 15308, 19436, 20114, 22962, 29154, 30171, 30616, 38872, 40228, 45924, 58308, 60342, 61232, 77744, 80456, 91848, 116616, 120684, 160912, 183696, 233232, 241368, 432451, 482736, 864902, 1297353, 1729804, 2594706, 3459608, 5189412, 6919216, 10378824, 20757648]

約数ペア:

[(1, 20757648), (2, 10378824), (3, 6919216), (4, 5189412), (6, 3459608), (8, 2594706), (12, 1729804), (16, 1297353), (24, 864902), (43, 482736), (48, 432451), (86, 241368), (89, 233232), (113, 183696), (129, 160912), (172, 120684), (178, 116616), (226, 91848), (258, 80456), (267, 77744), (339, 61232), (344, 60342), (356, 58308), (452, 45924), (516, 40228), (534, 38872), (678, 30616), (688, 30171), (712, 29154), (904, 22962), (1032, 20114), (1068, 19436), (1356, 15308), (1424, 14577), (1808, 11481), (2064, 10057), (2136, 9718), (2712, 7654), (3827, 5424), (4272, 4859)]