31969240

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{6101}}^1$

素因数の和:6243

約数の個数: 32

約数和(自身を含む): 72491760

約数和(自身を除く): 40522520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 6101, 12202, 24404, 30505, 48808, 61010, 122020, 244040, 799231, 1598462, 3196924, 3996155, 6393848, 7992310, 15984620, 31969240]

約数ペア:

[(1, 31969240), (2, 15984620), (4, 7992310), (5, 6393848), (8, 3996155), (10, 3196924), (20, 1598462), (40, 799231), (131, 244040), (262, 122020), (524, 61010), (655, 48808), (1048, 30505), (1310, 24404), (2620, 12202), (5240, 6101)]