128280620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{521}}^1\times {\mathrm{947}}^1$

素因数の和:1490

約数の個数: 48

約数和(自身を含む): 290975328

約数和(自身を除く): 162694708

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 521, 947, 1042, 1894, 2084, 2605, 3788, 4735, 5210, 6773, 9470, 10420, 12311, 13546, 18940, 24622, 27092, 33865, 49244, 61555, 67730, 123110, 135460, 246220, 493387, 986774, 1973548, 2466935, 4933870, 6414031, 9867740, 12828062, 25656124, 32070155, 64140310, 128280620]

約数ペア:

[(1, 128280620), (2, 64140310), (4, 32070155), (5, 25656124), (10, 12828062), (13, 9867740), (20, 6414031), (26, 4933870), (52, 2466935), (65, 1973548), (130, 986774), (260, 493387), (521, 246220), (947, 135460), (1042, 123110), (1894, 67730), (2084, 61555), (2605, 49244), (3788, 33865), (4735, 27092), (5210, 24622), (6773, 18940), (9470, 13546), (10420, 12311)]