2391280

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{421}}^1$

素因数の和:505

約数の個数: 40

約数和(自身を含む): 5651424

約数和(自身を除く): 3260144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 421, 568, 710, 842, 1136, 1420, 1684, 2105, 2840, 3368, 4210, 5680, 6736, 8420, 16840, 29891, 33680, 59782, 119564, 149455, 239128, 298910, 478256, 597820, 1195640, 2391280]

約数ペア:

[(1, 2391280), (2, 1195640), (4, 597820), (5, 478256), (8, 298910), (10, 239128), (16, 149455), (20, 119564), (40, 59782), (71, 33680), (80, 29891), (142, 16840), (284, 8420), (355, 6736), (421, 5680), (568, 4210), (710, 3368), (842, 2840), (1136, 2105), (1420, 1684)]