20456710

素因数分解:

$2^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{4019}}^1$

素因数の和:4535

約数の個数: 16

約数和(自身を含む): 36903600

約数和(自身を除く): 16446890

約数列:

[1, 2, 5, 10, 509, 1018, 2545, 4019, 5090, 8038, 20095, 40190, 2045671, 4091342, 10228355, 20456710]

約数ペア:

[(1, 20456710), (2, 10228355), (5, 4091342), (10, 2045671), (509, 40190), (1018, 20095), (2545, 8038), (4019, 5090)]