158553680

素因数分解:

$2^4\times 5^1\times {\mathrm{1981921}}^1$

素因数の和:1981934

約数の個数: 20

約数和(自身を含む): 368637492

約数和(自身を除く): 210083812

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1981921, 3963842, 7927684, 9909605, 15855368, 19819210, 31710736, 39638420, 79276840, 158553680]

約数ペア:

[(1, 158553680), (2, 79276840), (4, 39638420), (5, 31710736), (8, 19819210), (10, 15855368), (16, 9909605), (20, 7927684), (40, 3963842), (80, 1981921)]