20388870

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{2243}}^1$

素因数の和:2357

約数の個数: 48

約数和(自身を含む): 53559792

約数和(自身を除く): 33170922

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 101, 202, 303, 505, 606, 909, 1010, 1515, 1818, 2243, 3030, 4486, 4545, 6729, 9090, 11215, 13458, 20187, 22430, 33645, 40374, 67290, 100935, 201870, 226543, 453086, 679629, 1132715, 1359258, 2038887, 2265430, 3398145, 4077774, 6796290, 10194435, 20388870]

約数ペア:

[(1, 20388870), (2, 10194435), (3, 6796290), (5, 4077774), (6, 3398145), (9, 2265430), (10, 2038887), (15, 1359258), (18, 1132715), (30, 679629), (45, 453086), (90, 226543), (101, 201870), (202, 100935), (303, 67290), (505, 40374), (606, 33645), (909, 22430), (1010, 20187), (1515, 13458), (1818, 11215), (2243, 9090), (3030, 6729), (4486, 4545)]