20182020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{9091}}^1$

素因数の和:9140

約数の個数: 48

約数和(自身を含む): 58043328

約数和(自身を除く): 37861308

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 60, 74, 111, 148, 185, 222, 370, 444, 555, 740, 1110, 2220, 9091, 18182, 27273, 36364, 45455, 54546, 90910, 109092, 136365, 181820, 272730, 336367, 545460, 672734, 1009101, 1345468, 1681835, 2018202, 3363670, 4036404, 5045505, 6727340, 10091010, 20182020]

約数ペア:

[(1, 20182020), (2, 10091010), (3, 6727340), (4, 5045505), (5, 4036404), (6, 3363670), (10, 2018202), (12, 1681835), (15, 1345468), (20, 1009101), (30, 672734), (37, 545460), (60, 336367), (74, 272730), (111, 181820), (148, 136365), (185, 109092), (222, 90910), (370, 54546), (444, 45455), (555, 36364), (740, 27273), (1110, 18182), (2220, 9091)]