1629980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:290

約数の個数: 48

約数和(自身を含む): 3870720

約数和(自身を除く): 2240740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 239, 310, 341, 478, 620, 682, 956, 1195, 1364, 1705, 2390, 2629, 3410, 4780, 5258, 6820, 7409, 10516, 13145, 14818, 26290, 29636, 37045, 52580, 74090, 81499, 148180, 162998, 325996, 407495, 814990, 1629980]

約数ペア:

[(1, 1629980), (2, 814990), (4, 407495), (5, 325996), (10, 162998), (11, 148180), (20, 81499), (22, 74090), (31, 52580), (44, 37045), (55, 29636), (62, 26290), (110, 14818), (124, 13145), (155, 10516), (220, 7409), (239, 6820), (310, 5258), (341, 4780), (478, 3410), (620, 2629), (682, 2390), (956, 1705), (1195, 1364)]