20509715

素因数分解:

$5^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1\times {\mathrm{677}}^1$

素因数の和:838

約数の個数: 16

約数和(自身を含む): 25286688

約数和(自身を除く): 4776973

約数列:

[1, 5, 73, 83, 365, 415, 677, 3385, 6059, 30295, 49421, 56191, 247105, 280955, 4101943, 20509715]

約数ペア:

[(1, 20509715), (5, 4101943), (73, 280955), (83, 247105), (365, 56191), (415, 49421), (677, 30295), (3385, 6059)]