99689680

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{17551}}^1$

素因数の和:17635

約数の個数: 40

約数和(自身を含む): 235056384

約数和(自身を除く): 135366704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 17551, 35102, 70204, 87755, 140408, 175510, 280816, 351020, 702040, 1246121, 1404080, 2492242, 4984484, 6230605, 9968968, 12461210, 19937936, 24922420, 49844840, 99689680]

約数ペア:

[(1, 99689680), (2, 49844840), (4, 24922420), (5, 19937936), (8, 12461210), (10, 9968968), (16, 6230605), (20, 4984484), (40, 2492242), (71, 1404080), (80, 1246121), (142, 702040), (284, 351020), (355, 280816), (568, 175510), (710, 140408), (1136, 87755), (1420, 70204), (2840, 35102), (5680, 17551)]