664946570

素因数分解:

$2^1\times 5^1\times {\mathrm{491}}^1\times {\mathrm{135427}}^1$

素因数の和:135925

約数の個数: 16

約数和(自身を含む): 1199350368

約数和(自身を除く): 534403798

約数列:

[1, 2, 5, 10, 491, 982, 2455, 4910, 135427, 270854, 677135, 1354270, 66494657, 132989314, 332473285, 664946570]

約数ペア:

[(1, 664946570), (2, 332473285), (5, 132989314), (10, 66494657), (491, 1354270), (982, 677135), (2455, 270854), (4910, 135427)]