20515428

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^2\times {\mathrm{593}}^1$

素因数の和:665

約数の個数: 54

約数和(自身を含む): 53675622

約数和(自身を除く): 33160194

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 186, 279, 372, 558, 593, 961, 1116, 1186, 1779, 1922, 2372, 2883, 3558, 3844, 5337, 5766, 7116, 8649, 10674, 11532, 17298, 18383, 21348, 34596, 36766, 55149, 73532, 110298, 165447, 220596, 330894, 569873, 661788, 1139746, 1709619, 2279492, 3419238, 5128857, 6838476, 10257714, 20515428]

約数ペア:

[(1, 20515428), (2, 10257714), (3, 6838476), (4, 5128857), (6, 3419238), (9, 2279492), (12, 1709619), (18, 1139746), (31, 661788), (36, 569873), (62, 330894), (93, 220596), (124, 165447), (186, 110298), (279, 73532), (372, 55149), (558, 36766), (593, 34596), (961, 21348), (1116, 18383), (1186, 17298), (1779, 11532), (1922, 10674), (2372, 8649), (2883, 7116), (3558, 5766), (3844, 5337)]