20464400

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{4651}}^1$

素因数の和:4680

約数の個数: 60

約数和(自身を含む): 53646864

約数和(自身を除く): 33182464

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 110, 176, 200, 220, 275, 400, 440, 550, 880, 1100, 2200, 4400, 4651, 9302, 18604, 23255, 37208, 46510, 51161, 74416, 93020, 102322, 116275, 186040, 204644, 232550, 255805, 372080, 409288, 465100, 511610, 818576, 930200, 1023220, 1279025, 1860400, 2046440, 2558050, 4092880, 5116100, 10232200, 20464400]

約数ペア:

[(1, 20464400), (2, 10232200), (4, 5116100), (5, 4092880), (8, 2558050), (10, 2046440), (11, 1860400), (16, 1279025), (20, 1023220), (22, 930200), (25, 818576), (40, 511610), (44, 465100), (50, 409288), (55, 372080), (80, 255805), (88, 232550), (100, 204644), (110, 186040), (176, 116275), (200, 102322), (220, 93020), (275, 74416), (400, 51161), (440, 46510), (550, 37208), (880, 23255), (1100, 18604), (2200, 9302), (4400, 4651)]