20123763705

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^2\times {\mathrm{266029}}^1$

素因数の和:266122

約数の個数: 36

約数和(自身を含む): 35752835820

約数和(自身を除く): 15629072115

約数列:

[1, 3, 5, 9, 15, 41, 45, 123, 205, 369, 615, 1681, 1845, 5043, 8405, 15129, 25215, 75645, 266029, 798087, 1330145, 2394261, 3990435, 10907189, 11971305, 32721567, 54535945, 98164701, 163607835, 447194749, 490823505, 1341584247, 2235973745, 4024752741, 6707921235, 20123763705]

約数ペア:

[(1, 20123763705), (3, 6707921235), (5, 4024752741), (9, 2235973745), (15, 1341584247), (41, 490823505), (45, 447194749), (123, 163607835), (205, 98164701), (369, 54535945), (615, 32721567), (1681, 11971305), (1845, 10907189), (5043, 3990435), (8405, 2394261), (15129, 1330145), (25215, 798087), (75645, 266029)]