20265890

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{49429}}^1$

素因数の和:49477

約数の個数: 16

約数和(自身を含む): 37369080

約数和(自身を除く): 17103190

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 49429, 98858, 247145, 494290, 2026589, 4053178, 10132945, 20265890]

約数ペア:

[(1, 20265890), (2, 10132945), (5, 4053178), (10, 2026589), (41, 494290), (82, 247145), (205, 98858), (410, 49429)]