18715280

素因数分解:

$2^4\times 5^1\times {\mathrm{233941}}^1$

素因数の和:233954

約数の個数: 20

約数和(自身を含む): 43513212

約数和(自身を除く): 24797932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 233941, 467882, 935764, 1169705, 1871528, 2339410, 3743056, 4678820, 9357640, 18715280]

約数ペア:

[(1, 18715280), (2, 9357640), (4, 4678820), (5, 3743056), (8, 2339410), (10, 1871528), (16, 1169705), (20, 935764), (40, 467882), (80, 233941)]