20138365

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{631}}^1$

素因数の和:1140

約数の個数: 16

約数和(自身を含む): 26119296

約数和(自身を除く): 5980931

約数列:

[1, 5, 13, 65, 491, 631, 2455, 3155, 6383, 8203, 31915, 41015, 309821, 1549105, 4027673, 20138365]

約数ペア:

[(1, 20138365), (5, 4027673), (13, 1549105), (65, 309821), (491, 41015), (631, 31915), (2455, 8203), (3155, 6383)]