20565558890

素因数分解:

$2^1\times 5^1\times {\mathrm{10657}}^1\times {\mathrm{192977}}^1$

素因数の和:203641

約数の個数: 16

約数和(自身を含む): 37021671432

約数和(自身を除く): 16456112542

約数列:

[1, 2, 5, 10, 10657, 21314, 53285, 106570, 192977, 385954, 964885, 1929770, 2056555889, 4113111778, 10282779445, 20565558890]

約数ペア:

[(1, 20565558890), (2, 10282779445), (5, 4113111778), (10, 2056555889), (10657, 1929770), (21314, 964885), (53285, 385954), (106570, 192977)]