18892475

素因数分解:

$5^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1213}}^1$

素因数の和:1319

約数の個数: 24

約数和(自身を含む): 27096480

約数和(自身を除く): 8204005

約数列:

[1, 5, 7, 25, 35, 89, 175, 445, 623, 1213, 2225, 3115, 6065, 8491, 15575, 30325, 42455, 107957, 212275, 539785, 755699, 2698925, 3778495, 18892475]

約数ペア:

[(1, 18892475), (5, 3778495), (7, 2698925), (25, 755699), (35, 539785), (89, 212275), (175, 107957), (445, 42455), (623, 30325), (1213, 15575), (2225, 8491), (3115, 6065)]