20830290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53411}}^1$

素因数の和:53434

約数の個数: 32

約数和(自身を含む): 53839296

約数和(自身を除く): 33009006

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 53411, 106822, 160233, 267055, 320466, 534110, 694343, 801165, 1388686, 1602330, 2083029, 3471715, 4166058, 6943430, 10415145, 20830290]

約数ペア:

[(1, 20830290), (2, 10415145), (3, 6943430), (5, 4166058), (6, 3471715), (10, 2083029), (13, 1602330), (15, 1388686), (26, 801165), (30, 694343), (39, 534110), (65, 320466), (78, 267055), (130, 160233), (195, 106822), (390, 53411)]