20139340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2671}}^1$

素因数の和:2722

約数の個数: 48

約数和(自身を含む): 47134080

約数和(自身を除く): 26994740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 260, 290, 377, 580, 754, 1508, 1885, 2671, 3770, 5342, 7540, 10684, 13355, 26710, 34723, 53420, 69446, 77459, 138892, 154918, 173615, 309836, 347230, 387295, 694460, 774590, 1006967, 1549180, 2013934, 4027868, 5034835, 10069670, 20139340]

約数ペア:

[(1, 20139340), (2, 10069670), (4, 5034835), (5, 4027868), (10, 2013934), (13, 1549180), (20, 1006967), (26, 774590), (29, 694460), (52, 387295), (58, 347230), (65, 309836), (116, 173615), (130, 154918), (145, 138892), (260, 77459), (290, 69446), (377, 53420), (580, 34723), (754, 26710), (1508, 13355), (1885, 10684), (2671, 7540), (3770, 5342)]