85781240

素因数分解:

$2^3\times 5^1\times {\mathrm{607}}^1\times {\mathrm{3533}}^1$

素因数の和:4151

約数の個数: 32

約数和(自身を含む): 193380480

約数和(自身を除く): 107599240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 607, 1214, 2428, 3035, 3533, 4856, 6070, 7066, 12140, 14132, 17665, 24280, 28264, 35330, 70660, 141320, 2144531, 4289062, 8578124, 10722655, 17156248, 21445310, 42890620, 85781240]

約数ペア:

[(1, 85781240), (2, 42890620), (4, 21445310), (5, 17156248), (8, 10722655), (10, 8578124), (20, 4289062), (40, 2144531), (607, 141320), (1214, 70660), (2428, 35330), (3035, 28264), (3533, 24280), (4856, 17665), (6070, 14132), (7066, 12140)]