155086520

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{9967}}^1$

素因数の和:10367

約数の個数: 32

約数和(自身を含む): 349876800

約数和(自身を除く): 194790280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3890, 7780, 9967, 15560, 19934, 39868, 49835, 79736, 99670, 199340, 398680, 3877163, 7754326, 15508652, 19385815, 31017304, 38771630, 77543260, 155086520]

約数ペア:

[(1, 155086520), (2, 77543260), (4, 38771630), (5, 31017304), (8, 19385815), (10, 15508652), (20, 7754326), (40, 3877163), (389, 398680), (778, 199340), (1556, 99670), (1945, 79736), (3112, 49835), (3890, 39868), (7780, 19934), (9967, 15560)]