12819820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{49307}}^1$

素因数の和:49329

約数の個数: 24

約数和(自身を含む): 28993104

約数和(自身を除く): 16173284

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 49307, 98614, 197228, 246535, 493070, 640991, 986140, 1281982, 2563964, 3204955, 6409910, 12819820]

約数ペア:

[(1, 12819820), (2, 6409910), (4, 3204955), (5, 2563964), (10, 1281982), (13, 986140), (20, 640991), (26, 493070), (52, 246535), (65, 197228), (130, 98614), (260, 49307)]