86640764

素因数分解:

$2^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{19709}}^1$

素因数の和:19877

約数の個数: 24

約数和(自身を含む): 174394080

約数和(自身を除く): 87753316

約数列:

[1, 2, 4, 7, 14, 28, 157, 314, 628, 1099, 2198, 4396, 19709, 39418, 78836, 137963, 275926, 551852, 3094313, 6188626, 12377252, 21660191, 43320382, 86640764]

約数ペア:

[(1, 86640764), (2, 43320382), (4, 21660191), (7, 12377252), (14, 6188626), (28, 3094313), (157, 551852), (314, 275926), (628, 137963), (1099, 78836), (2198, 39418), (4396, 19709)]