2168996840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1749191}}^1$

素因数の和:1749233

約数の個数: 32

約数和(自身を含む): 5037672960

約数和(自身を除く): 2868676120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 1749191, 3498382, 6996764, 8745955, 13993528, 17491910, 34983820, 54224921, 69967640, 108449842, 216899684, 271124605, 433799368, 542249210, 1084498420, 2168996840]

約数ペア:

[(1, 2168996840), (2, 1084498420), (4, 542249210), (5, 433799368), (8, 271124605), (10, 216899684), (20, 108449842), (31, 69967640), (40, 54224921), (62, 34983820), (124, 17491910), (155, 13993528), (248, 8745955), (310, 6996764), (620, 3498382), (1240, 1749191)]