20183540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{521}}^1$

素因数の和:692

約数の個数: 48

約数和(自身を含む): 46040400

約数和(自身を除く): 25856860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 149, 260, 298, 521, 596, 745, 1042, 1490, 1937, 2084, 2605, 2980, 3874, 5210, 6773, 7748, 9685, 10420, 13546, 19370, 27092, 33865, 38740, 67730, 77629, 135460, 155258, 310516, 388145, 776290, 1009177, 1552580, 2018354, 4036708, 5045885, 10091770, 20183540]

約数ペア:

[(1, 20183540), (2, 10091770), (4, 5045885), (5, 4036708), (10, 2018354), (13, 1552580), (20, 1009177), (26, 776290), (52, 388145), (65, 310516), (130, 155258), (149, 135460), (260, 77629), (298, 67730), (521, 38740), (596, 33865), (745, 27092), (1042, 19370), (1490, 13546), (1937, 10420), (2084, 9685), (2605, 7748), (2980, 6773), (3874, 5210)]