90555640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{323413}}^1$

素因数の和:323431

約数の個数: 32

約数和(自身を含む): 232858080

約数和(自身を除く): 142302440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 323413, 646826, 1293652, 1617065, 2263891, 2587304, 3234130, 4527782, 6468260, 9055564, 11319455, 12936520, 18111128, 22638910, 45277820, 90555640]

約数ペア:

[(1, 90555640), (2, 45277820), (4, 22638910), (5, 18111128), (7, 12936520), (8, 11319455), (10, 9055564), (14, 6468260), (20, 4527782), (28, 3234130), (35, 2587304), (40, 2263891), (56, 1617065), (70, 1293652), (140, 646826), (280, 323413)]