20290790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{1229}}^1$

素因数の和:1376

約数の個数: 32

約数和(自身を含む): 39674880

約数和(自身を除く): 19384090

約数列:

[1, 2, 5, 10, 13, 26, 65, 127, 130, 254, 635, 1229, 1270, 1651, 2458, 3302, 6145, 8255, 12290, 15977, 16510, 31954, 79885, 156083, 159770, 312166, 780415, 1560830, 2029079, 4058158, 10145395, 20290790]

約数ペア:

[(1, 20290790), (2, 10145395), (5, 4058158), (10, 2029079), (13, 1560830), (26, 780415), (65, 312166), (127, 159770), (130, 156083), (254, 79885), (635, 31954), (1229, 16510), (1270, 15977), (1651, 12290), (2458, 8255), (3302, 6145)]