20914160

素因数分解:

$2^4\times 5^1\times {\mathrm{261427}}^1$

素因数の和:261440

約数の個数: 20

約数和(自身を含む): 48625608

約数和(自身を除く): 27711448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 261427, 522854, 1045708, 1307135, 2091416, 2614270, 4182832, 5228540, 10457080, 20914160]

約数ペア:

[(1, 20914160), (2, 10457080), (4, 5228540), (5, 4182832), (8, 2614270), (10, 2091416), (16, 1307135), (20, 1045708), (40, 522854), (80, 261427)]