2468840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:234

約数の個数: 64

約数和(自身を含む): 6289920

約数和(自身を除く): 3821080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 181, 220, 248, 310, 341, 362, 440, 620, 682, 724, 905, 1240, 1364, 1448, 1705, 1810, 1991, 2728, 3410, 3620, 3982, 5611, 6820, 7240, 7964, 9955, 11222, 13640, 15928, 19910, 22444, 28055, 39820, 44888, 56110, 61721, 79640, 112220, 123442, 224440, 246884, 308605, 493768, 617210, 1234420, 2468840]

約数ペア:

[(1, 2468840), (2, 1234420), (4, 617210), (5, 493768), (8, 308605), (10, 246884), (11, 224440), (20, 123442), (22, 112220), (31, 79640), (40, 61721), (44, 56110), (55, 44888), (62, 39820), (88, 28055), (110, 22444), (124, 19910), (155, 15928), (181, 13640), (220, 11222), (248, 9955), (310, 7964), (341, 7240), (362, 6820), (440, 5611), (620, 3982), (682, 3620), (724, 3410), (905, 2728), (1240, 1991), (1364, 1810), (1448, 1705)]