261431486

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{167}}^2$

素因数の和:488

約数の個数: 24

約数和(自身を含む): 407387640

約数和(自身を除く): 145956154

約数列:

[1, 2, 43, 86, 109, 167, 218, 334, 4687, 7181, 9374, 14362, 18203, 27889, 36406, 55778, 782729, 1199227, 1565458, 2398454, 3039901, 6079802, 130715743, 261431486]

約数ペア:

[(1, 261431486), (2, 130715743), (43, 6079802), (86, 3039901), (109, 2398454), (167, 1565458), (218, 1199227), (334, 782729), (4687, 55778), (7181, 36406), (9374, 27889), (14362, 18203)]