20430020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{78577}}^1$

素因数の和:78599

約数の個数: 24

約数和(自身を含む): 46203864

約数和(自身を除く): 25773844

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 78577, 157154, 314308, 392885, 785770, 1021501, 1571540, 2043002, 4086004, 5107505, 10215010, 20430020]

約数ペア:

[(1, 20430020), (2, 10215010), (4, 5107505), (5, 4086004), (10, 2043002), (13, 1571540), (20, 1021501), (26, 785770), (52, 392885), (65, 314308), (130, 157154), (260, 78577)]