18473368820

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{389}}^1\times {\mathrm{21013}}^1$

素因数の和:21524

約数の個数: 48

約数和(自身を含む): 39239862480

約数和(自身を除く): 20766493660

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 389, 452, 565, 778, 1130, 1556, 1945, 2260, 3890, 7780, 21013, 42026, 43957, 84052, 87914, 105065, 175828, 210130, 219785, 420260, 439570, 879140, 2374469, 4748938, 8174057, 9497876, 11872345, 16348114, 23744690, 32696228, 40870285, 47489380, 81740570, 163481140, 923668441, 1847336882, 3694673764, 4618342205, 9236684410, 18473368820]

約数ペア:

[(1, 18473368820), (2, 9236684410), (4, 4618342205), (5, 3694673764), (10, 1847336882), (20, 923668441), (113, 163481140), (226, 81740570), (389, 47489380), (452, 40870285), (565, 32696228), (778, 23744690), (1130, 16348114), (1556, 11872345), (1945, 9497876), (2260, 8174057), (3890, 4748938), (7780, 2374469), (21013, 879140), (42026, 439570), (43957, 420260), (84052, 219785), (87914, 210130), (105065, 175828)]