81830240

素因数分解:

$2^5\times 5^1\times {\mathrm{511439}}^1$

素因数の和:511454

約数の個数: 24

約数和(自身を含む): 193324320

約数和(自身を除く): 111494080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 511439, 1022878, 2045756, 2557195, 4091512, 5114390, 8183024, 10228780, 16366048, 20457560, 40915120, 81830240]

約数ペア:

[(1, 81830240), (2, 40915120), (4, 20457560), (5, 16366048), (8, 10228780), (10, 8183024), (16, 5114390), (20, 4091512), (32, 2557195), (40, 2045756), (80, 1022878), (160, 511439)]