142389560

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{9151}}^1$

素因数の和:9551

約数の個数: 32

約数和(自身を含む): 321235200

約数和(自身を除く): 178845640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3890, 7780, 9151, 15560, 18302, 36604, 45755, 73208, 91510, 183020, 366040, 3559739, 7119478, 14238956, 17798695, 28477912, 35597390, 71194780, 142389560]

約数ペア:

[(1, 142389560), (2, 71194780), (4, 35597390), (5, 28477912), (8, 17798695), (10, 14238956), (20, 7119478), (40, 3559739), (389, 366040), (778, 183020), (1556, 91510), (1945, 73208), (3112, 45755), (3890, 36604), (7780, 18302), (9151, 15560)]