20315135

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{1549}}^1$

素因数の和:1658

約数の個数: 16

約数和(自身を含む): 25370400

約数和(自身を除く): 5055265

約数列:

[1, 5, 43, 61, 215, 305, 1549, 2623, 7745, 13115, 66607, 94489, 333035, 472445, 4063027, 20315135]

約数ペア:

[(1, 20315135), (5, 4063027), (43, 472445), (61, 333035), (215, 94489), (305, 66607), (1549, 13115), (2623, 7745)]