142723780

素因数分解:

$2^2\times 5^1\times {\mathrm{809}}^1\times {\mathrm{8821}}^1$

素因数の和:9639

約数の個数: 24

約数和(自身を含む): 300124440

約数和(自身を除く): 157400660

約数列:

[1, 2, 4, 5, 10, 20, 809, 1618, 3236, 4045, 8090, 8821, 16180, 17642, 35284, 44105, 88210, 176420, 7136189, 14272378, 28544756, 35680945, 71361890, 142723780]

約数ペア:

[(1, 142723780), (2, 71361890), (4, 35680945), (5, 28544756), (10, 14272378), (20, 7136189), (809, 176420), (1618, 88210), (3236, 44105), (4045, 35284), (8090, 17642), (8821, 16180)]