20390704

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{12373}}^1$

素因数の和:12484

約数の個数: 20

約数和(自身を含む): 39893776

約数和(自身を除く): 19503072

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 12373, 24746, 49492, 98984, 197968, 1274419, 2548838, 5097676, 10195352, 20390704]

約数ペア:

[(1, 20390704), (2, 10195352), (4, 5097676), (8, 2548838), (16, 1274419), (103, 197968), (206, 98984), (412, 49492), (824, 24746), (1648, 12373)]