90902800

素因数分解:

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

素因数の和:227275

約数の個数: 30

約数和(自身を含む): 218394938

約数和(自身を除く): 127492138

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 227257, 454514, 909028, 1136285, 1818056, 2272570, 3636112, 4545140, 5681425, 9090280, 11362850, 18180560, 22725700, 45451400, 90902800]

約数ペア:

[(1, 90902800), (2, 45451400), (4, 22725700), (5, 18180560), (8, 11362850), (10, 9090280), (16, 5681425), (20, 4545140), (25, 3636112), (40, 2272570), (50, 1818056), (80, 1136285), (100, 909028), (200, 454514), (400, 227257)]