20053890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1367}}^1$

素因数の和:1543

約数の個数: 48

約数和(自身を含む): 52498368

約数和(自身を除く): 32444478

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 163, 326, 489, 815, 978, 1367, 1467, 1630, 2445, 2734, 2934, 4101, 4890, 6835, 7335, 8202, 12303, 13670, 14670, 20505, 24606, 41010, 61515, 123030, 222821, 445642, 668463, 1114105, 1336926, 2005389, 2228210, 3342315, 4010778, 6684630, 10026945, 20053890]

約数ペア:

[(1, 20053890), (2, 10026945), (3, 6684630), (5, 4010778), (6, 3342315), (9, 2228210), (10, 2005389), (15, 1336926), (18, 1114105), (30, 668463), (45, 445642), (90, 222821), (163, 123030), (326, 61515), (489, 41010), (815, 24606), (978, 20505), (1367, 14670), (1467, 13670), (1630, 12303), (2445, 8202), (2734, 7335), (2934, 6835), (4101, 4890)]