20470760

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{1667}}^1$

素因数の和:1985

約数の個数: 32

約数和(自身を含む): 46236960

約数和(自身を除く): 25766200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 1667, 2456, 3070, 3334, 6140, 6668, 8335, 12280, 13336, 16670, 33340, 66680, 511769, 1023538, 2047076, 2558845, 4094152, 5117690, 10235380, 20470760]

約数ペア:

[(1, 20470760), (2, 10235380), (4, 5117690), (5, 4094152), (8, 2558845), (10, 2047076), (20, 1023538), (40, 511769), (307, 66680), (614, 33340), (1228, 16670), (1535, 13336), (1667, 12280), (2456, 8335), (3070, 6668), (3334, 6140)]