18309860

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{12541}}^1$

素因数の和:12623

約数の個数: 24

約数和(自身を含む): 38980536

約数和(自身を除く): 20670676

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 12541, 25082, 50164, 62705, 125410, 250820, 915493, 1830986, 3661972, 4577465, 9154930, 18309860]

約数ペア:

[(1, 18309860), (2, 9154930), (4, 4577465), (5, 3661972), (10, 1830986), (20, 915493), (73, 250820), (146, 125410), (292, 62705), (365, 50164), (730, 25082), (1460, 12541)]