20740720130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{159544001}}^1$

素因数の和:159544021

約数の個数: 16

約数和(自身を含む): 40205088504

約数和(自身を除く): 19464368374

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 159544001, 319088002, 797720005, 1595440010, 2074072013, 4148144026, 10370360065, 20740720130]

約数ペア:

[(1, 20740720130), (2, 10370360065), (5, 4148144026), (10, 2074072013), (13, 1595440010), (26, 797720005), (65, 319088002), (130, 159544001)]