209920462820

素因数分解:

$2^2\times 5^1\times {\mathrm{9091}}^1\times {\mathrm{1154551}}^1$

素因数の和:1163651

約数の個数: 24

約数和(自身を含む): 440881844928

約数和(自身を除く): 230961382108

約数列:

[1, 2, 4, 5, 10, 20, 9091, 18182, 36364, 45455, 90910, 181820, 1154551, 2309102, 4618204, 5772755, 11545510, 23091020, 10496023141, 20992046282, 41984092564, 52480115705, 104960231410, 209920462820]

約数ペア:

[(1, 209920462820), (2, 104960231410), (4, 52480115705), (5, 41984092564), (10, 20992046282), (20, 10496023141), (9091, 23091020), (18182, 11545510), (36364, 5772755), (45455, 4618204), (90910, 2309102), (181820, 1154551)]