161399980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1152857}}^1$

素因数の和:1152873

約数の個数: 24

約数和(自身を含む): 387360288

約数和(自身を除く): 225960308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1152857, 2305714, 4611428, 5764285, 8069999, 11528570, 16139998, 23057140, 32279996, 40349995, 80699990, 161399980]

約数ペア:

[(1, 161399980), (2, 80699990), (4, 40349995), (5, 32279996), (7, 23057140), (10, 16139998), (14, 11528570), (20, 8069999), (28, 5764285), (35, 4611428), (70, 2305714), (140, 1152857)]