8581228360

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1637639}}^1$

素因数の和:1637781

約数の個数: 32

約数和(自身を含む): 19455163200

約数和(自身を除く): 10873934840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 1637639, 3275278, 6550556, 8188195, 13101112, 16376390, 32752780, 65505560, 214530709, 429061418, 858122836, 1072653545, 1716245672, 2145307090, 4290614180, 8581228360]

約数ペア:

[(1, 8581228360), (2, 4290614180), (4, 2145307090), (5, 1716245672), (8, 1072653545), (10, 858122836), (20, 429061418), (40, 214530709), (131, 65505560), (262, 32752780), (524, 16376390), (655, 13101112), (1048, 8188195), (1310, 6550556), (2620, 3275278), (5240, 1637639)]