31697440

素因数分解:

$2^5\times 5^1\times {\mathrm{198109}}^1$

素因数の和:198124

約数の個数: 24

約数和(自身を含む): 74885580

約数和(自身を除く): 43188140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 198109, 396218, 792436, 990545, 1584872, 1981090, 3169744, 3962180, 6339488, 7924360, 15848720, 31697440]

約数ペア:

[(1, 31697440), (2, 15848720), (4, 7924360), (5, 6339488), (8, 3962180), (10, 3169744), (16, 1981090), (20, 1584872), (32, 990545), (40, 792436), (80, 396218), (160, 198109)]