642737290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{22171}}^1$

素因数の和:22414

約数の個数: 32

約数和(自身を含む): 1251565056

約数和(自身を除く): 608827766

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 223, 446, 1115, 2230, 2899, 5798, 14495, 22171, 28990, 44342, 110855, 221710, 288223, 576446, 1441115, 2882230, 4944133, 9888266, 24720665, 49441330, 64273729, 128547458, 321368645, 642737290]

約数ペア:

[(1, 642737290), (2, 321368645), (5, 128547458), (10, 64273729), (13, 49441330), (26, 24720665), (65, 9888266), (130, 4944133), (223, 2882230), (446, 1441115), (1115, 576446), (2230, 288223), (2899, 221710), (5798, 110855), (14495, 44342), (22171, 28990)]