1639207640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{5854313}}^1$

素因数の和:5854331

約数の個数: 32

約数和(自身を含む): 4215106080

約数和(自身を除く): 2575898440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 5854313, 11708626, 23417252, 29271565, 40980191, 46834504, 58543130, 81960382, 117086260, 163920764, 204900955, 234172520, 327841528, 409801910, 819603820, 1639207640]

約数ペア:

[(1, 1639207640), (2, 819603820), (4, 409801910), (5, 327841528), (7, 234172520), (8, 204900955), (10, 163920764), (14, 117086260), (20, 81960382), (28, 58543130), (35, 46834504), (40, 40980191), (56, 29271565), (70, 23417252), (140, 11708626), (280, 5854313)]