28732660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{383}}^1$

素因数の和:445

約数の個数: 72

約数和(自身を含む): 68640768

約数和(自身を除く): 39908108

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 121, 124, 155, 220, 242, 310, 341, 383, 484, 605, 620, 682, 766, 1210, 1364, 1532, 1705, 1915, 2420, 3410, 3751, 3830, 4213, 6820, 7502, 7660, 8426, 11873, 15004, 16852, 18755, 21065, 23746, 37510, 42130, 46343, 47492, 59365, 75020, 84260, 92686, 118730, 130603, 185372, 231715, 237460, 261206, 463430, 522412, 653015, 926860, 1306030, 1436633, 2612060, 2873266, 5746532, 7183165, 14366330, 28732660]

約数ペア:

[(1, 28732660), (2, 14366330), (4, 7183165), (5, 5746532), (10, 2873266), (11, 2612060), (20, 1436633), (22, 1306030), (31, 926860), (44, 653015), (55, 522412), (62, 463430), (110, 261206), (121, 237460), (124, 231715), (155, 185372), (220, 130603), (242, 118730), (310, 92686), (341, 84260), (383, 75020), (484, 59365), (605, 47492), (620, 46343), (682, 42130), (766, 37510), (1210, 23746), (1364, 21065), (1532, 18755), (1705, 16852), (1915, 15004), (2420, 11873), (3410, 8426), (3751, 7660), (3830, 7502), (4213, 6820)]