18180560

素因数分解:

$2^4\times 5^1\times {\mathrm{227257}}^1$

素因数の和:227270

約数の個数: 20

約数和(自身を含む): 42269988

約数和(自身を除く): 24089428

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227257, 454514, 909028, 1136285, 1818056, 2272570, 3636112, 4545140, 9090280, 18180560]

約数ペア:

[(1, 18180560), (2, 9090280), (4, 4545140), (5, 3636112), (8, 2272570), (10, 1818056), (16, 1136285), (20, 909028), (40, 454514), (80, 227257)]