19430560

素因数分解:

$2^5\times 5^1\times {\mathrm{121441}}^1$

素因数の和:121456

約数の個数: 24

約数和(自身を含む): 45905076

約数和(自身を除く): 26474516

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 121441, 242882, 485764, 607205, 971528, 1214410, 1943056, 2428820, 3886112, 4857640, 9715280, 19430560]

約数ペア:

[(1, 19430560), (2, 9715280), (4, 4857640), (5, 3886112), (8, 2428820), (10, 1943056), (16, 1214410), (20, 971528), (32, 607205), (40, 485764), (80, 242882), (160, 121441)]