26318480

素因数分解:

$2^4\times 5^1\times {\mathrm{328981}}^1$

素因数の和:328994

約数の個数: 20

約数和(自身を含む): 61190652

約数和(自身を除く): 34872172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 328981, 657962, 1315924, 1644905, 2631848, 3289810, 5263696, 6579620, 13159240, 26318480]

約数ペア:

[(1, 26318480), (2, 13159240), (4, 6579620), (5, 5263696), (8, 3289810), (10, 2631848), (16, 1644905), (20, 1315924), (40, 657962), (80, 328981)]