20573020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1181}}^1$

素因数の和:1270

約数の個数: 48

約数和(自身を含む): 47261088

約数和(自身を除く): 26688068

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1181, 1340, 1742, 2362, 3484, 4355, 4724, 5905, 8710, 11810, 15353, 17420, 23620, 30706, 61412, 76765, 79127, 153530, 158254, 307060, 316508, 395635, 791270, 1028651, 1582540, 2057302, 4114604, 5143255, 10286510, 20573020]

約数ペア:

[(1, 20573020), (2, 10286510), (4, 5143255), (5, 4114604), (10, 2057302), (13, 1582540), (20, 1028651), (26, 791270), (52, 395635), (65, 316508), (67, 307060), (130, 158254), (134, 153530), (260, 79127), (268, 76765), (335, 61412), (670, 30706), (871, 23620), (1181, 17420), (1340, 15353), (1742, 11810), (2362, 8710), (3484, 5905), (4355, 4724)]