56531120

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{211}}^1$

素因数の和:438

約数の個数: 80

約数和(自身を含む): 140535648

約数和(自身を除く): 84004528

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 197, 211, 272, 340, 394, 422, 680, 788, 844, 985, 1055, 1360, 1576, 1688, 1970, 2110, 3152, 3349, 3376, 3587, 3940, 4220, 6698, 7174, 7880, 8440, 13396, 14348, 15760, 16745, 16880, 17935, 26792, 28696, 33490, 35870, 41567, 53584, 57392, 66980, 71740, 83134, 133960, 143480, 166268, 207835, 267920, 286960, 332536, 415670, 665072, 706639, 831340, 1413278, 1662680, 2826556, 3325360, 3533195, 5653112, 7066390, 11306224, 14132780, 28265560, 56531120]

約数ペア:

[(1, 56531120), (2, 28265560), (4, 14132780), (5, 11306224), (8, 7066390), (10, 5653112), (16, 3533195), (17, 3325360), (20, 2826556), (34, 1662680), (40, 1413278), (68, 831340), (80, 706639), (85, 665072), (136, 415670), (170, 332536), (197, 286960), (211, 267920), (272, 207835), (340, 166268), (394, 143480), (422, 133960), (680, 83134), (788, 71740), (844, 66980), (985, 57392), (1055, 53584), (1360, 41567), (1576, 35870), (1688, 33490), (1970, 28696), (2110, 26792), (3152, 17935), (3349, 16880), (3376, 16745), (3587, 15760), (3940, 14348), (4220, 13396), (6698, 8440), (7174, 7880)]