20091380

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{6163}}^1$

素因数の和:6335

約数の個数: 24

約数和(自身を含む): 42457632

約数和(自身を除く): 22366252

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 6163, 12326, 24652, 30815, 61630, 123260, 1004569, 2009138, 4018276, 5022845, 10045690, 20091380]

約数ペア:

[(1, 20091380), (2, 10045690), (4, 5022845), (5, 4018276), (10, 2009138), (20, 1004569), (163, 123260), (326, 61630), (652, 30815), (815, 24652), (1630, 12326), (3260, 6163)]