18748880

素因数分解:

$2^4\times 5^1\times {\mathrm{234361}}^1$

素因数の和:234374

約数の個数: 20

約数和(自身を含む): 43591332

約数和(自身を除く): 24842452

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 234361, 468722, 937444, 1171805, 1874888, 2343610, 3749776, 4687220, 9374440, 18748880]

約数ペア:

[(1, 18748880), (2, 9374440), (4, 4687220), (5, 3749776), (8, 2343610), (10, 1874888), (16, 1171805), (20, 937444), (40, 468722), (80, 234361)]