20786687240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{206299}}^1$

素因数の和:206550

約数の個数: 64

約数和(自身を含む): 51244920000

約数和(自身を除く): 30458232760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 229, 440, 458, 916, 1145, 1832, 2290, 2519, 4580, 5038, 9160, 10076, 12595, 20152, 25190, 50380, 100760, 206299, 412598, 825196, 1031495, 1650392, 2062990, 2269289, 4125980, 4538578, 8251960, 9077156, 11346445, 18154312, 22692890, 45385780, 47242471, 90771560, 94484942, 188969884, 236212355, 377939768, 472424710, 519667181, 944849420, 1039334362, 1889698840, 2078668724, 2598335905, 4157337448, 5196671810, 10393343620, 20786687240]

約数ペア:

[(1, 20786687240), (2, 10393343620), (4, 5196671810), (5, 4157337448), (8, 2598335905), (10, 2078668724), (11, 1889698840), (20, 1039334362), (22, 944849420), (40, 519667181), (44, 472424710), (55, 377939768), (88, 236212355), (110, 188969884), (220, 94484942), (229, 90771560), (440, 47242471), (458, 45385780), (916, 22692890), (1145, 18154312), (1832, 11346445), (2290, 9077156), (2519, 8251960), (4580, 4538578), (5038, 4125980), (9160, 2269289), (10076, 2062990), (12595, 1650392), (20152, 1031495), (25190, 825196), (50380, 412598), (100760, 206299)]