131984240

素因数分解:

$2^4\times 5^1\times {\mathrm{1649803}}^1$

素因数の和:1649816

約数の個数: 20

約数和(自身を含む): 306863544

約数和(自身を除く): 174879304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1649803, 3299606, 6599212, 8249015, 13198424, 16498030, 26396848, 32996060, 65992120, 131984240]

約数ペア:

[(1, 131984240), (2, 65992120), (4, 32996060), (5, 26396848), (8, 16498030), (10, 13198424), (16, 8249015), (20, 6599212), (40, 3299606), (80, 1649803)]