89995640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{321413}}^1$

素因数の和:321431

約数の個数: 32

約数和(自身を含む): 231418080

約数和(自身を除く): 141422440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 321413, 642826, 1285652, 1607065, 2249891, 2571304, 3214130, 4499782, 6428260, 8999564, 11249455, 12856520, 17999128, 22498910, 44997820, 89995640]

約数ペア:

[(1, 89995640), (2, 44997820), (4, 22498910), (5, 17999128), (7, 12856520), (8, 11249455), (10, 8999564), (14, 6428260), (20, 4499782), (28, 3214130), (35, 2571304), (40, 2249891), (56, 1607065), (70, 1285652), (140, 642826), (280, 321413)]