2679640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2161}}^1$

素因数の和:2203

約数の個数: 32

約数和(自身を含む): 6226560

約数和(自身を除く): 3546920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 2161, 4322, 8644, 10805, 17288, 21610, 43220, 66991, 86440, 133982, 267964, 334955, 535928, 669910, 1339820, 2679640]

約数ペア:

[(1, 2679640), (2, 1339820), (4, 669910), (5, 535928), (8, 334955), (10, 267964), (20, 133982), (31, 86440), (40, 66991), (62, 43220), (124, 21610), (155, 17288), (248, 10805), (310, 8644), (620, 4322), (1240, 2161)]