12938480

素因数分解:

$2^4\times 5^1\times {\mathrm{161731}}^1$

素因数の和:161744

約数の個数: 20

約数和(自身を含む): 30082152

約数和(自身を除く): 17143672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 161731, 323462, 646924, 808655, 1293848, 1617310, 2587696, 3234620, 6469240, 12938480]

約数ペア:

[(1, 12938480), (2, 6469240), (4, 3234620), (5, 2587696), (8, 1617310), (10, 1293848), (16, 808655), (20, 646924), (40, 323462), (80, 161731)]