18866840

素因数分解:

$2^3\times 5^1\times {\mathrm{471671}}^1$

素因数の和:471682

約数の個数: 16

約数和(自身を含む): 42450480

約数和(自身を除く): 23583640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 471671, 943342, 1886684, 2358355, 3773368, 4716710, 9433420, 18866840]

約数ペア:

[(1, 18866840), (2, 9433420), (4, 4716710), (5, 3773368), (8, 2358355), (10, 1886684), (20, 943342), (40, 471671)]