389622640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{442753}}^1$

素因数の和:442777

約数の個数: 40

約数和(自身を含む): 988226928

約数和(自身を除く): 598604288

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 442753, 885506, 1771012, 2213765, 3542024, 4427530, 4870283, 7084048, 8855060, 9740566, 17710120, 19481132, 24351415, 35420240, 38962264, 48702830, 77924528, 97405660, 194811320, 389622640]

約数ペア:

[(1, 389622640), (2, 194811320), (4, 97405660), (5, 77924528), (8, 48702830), (10, 38962264), (11, 35420240), (16, 24351415), (20, 19481132), (22, 17710120), (40, 9740566), (44, 8855060), (55, 7084048), (80, 4870283), (88, 4427530), (110, 3542024), (176, 2213765), (220, 1771012), (440, 885506), (880, 442753)]