8177180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:171

約数の個数: 72

約数和(自身を含む): 19662720

約数和(自身を除く): 11485540

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 109, 110, 121, 124, 155, 218, 220, 242, 310, 341, 436, 484, 545, 605, 620, 682, 1090, 1199, 1210, 1364, 1705, 2180, 2398, 2420, 3379, 3410, 3751, 4796, 5995, 6758, 6820, 7502, 11990, 13189, 13516, 15004, 16895, 18755, 23980, 26378, 33790, 37169, 37510, 52756, 65945, 67580, 74338, 75020, 131890, 148676, 185845, 263780, 371690, 408859, 743380, 817718, 1635436, 2044295, 4088590, 8177180]

約数ペア:

[(1, 8177180), (2, 4088590), (4, 2044295), (5, 1635436), (10, 817718), (11, 743380), (20, 408859), (22, 371690), (31, 263780), (44, 185845), (55, 148676), (62, 131890), (109, 75020), (110, 74338), (121, 67580), (124, 65945), (155, 52756), (218, 37510), (220, 37169), (242, 33790), (310, 26378), (341, 23980), (436, 18755), (484, 16895), (545, 15004), (605, 13516), (620, 13189), (682, 11990), (1090, 7502), (1199, 6820), (1210, 6758), (1364, 5995), (1705, 4796), (2180, 3751), (2398, 3410), (2420, 3379)]