65428880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{499}}^1$

素因数の和:672

約数の個数: 80

約数和(自身を含む): 167400000

約数和(自身を除く): 101971120

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 149, 176, 220, 298, 440, 499, 596, 745, 880, 998, 1192, 1490, 1639, 1996, 2384, 2495, 2980, 3278, 3992, 4990, 5489, 5960, 6556, 7984, 8195, 9980, 10978, 11920, 13112, 16390, 19960, 21956, 26224, 27445, 32780, 39920, 43912, 54890, 65560, 74351, 87824, 109780, 131120, 148702, 219560, 297404, 371755, 439120, 594808, 743510, 817861, 1189616, 1487020, 1635722, 2974040, 3271444, 4089305, 5948080, 6542888, 8178610, 13085776, 16357220, 32714440, 65428880]

約数ペア:

[(1, 65428880), (2, 32714440), (4, 16357220), (5, 13085776), (8, 8178610), (10, 6542888), (11, 5948080), (16, 4089305), (20, 3271444), (22, 2974040), (40, 1635722), (44, 1487020), (55, 1189616), (80, 817861), (88, 743510), (110, 594808), (149, 439120), (176, 371755), (220, 297404), (298, 219560), (440, 148702), (499, 131120), (596, 109780), (745, 87824), (880, 74351), (998, 65560), (1192, 54890), (1490, 43912), (1639, 39920), (1996, 32780), (2384, 27445), (2495, 26224), (2980, 21956), (3278, 19960), (3992, 16390), (4990, 13112), (5489, 11920), (5960, 10978), (6556, 9980), (7984, 8195)]