20454516

素因数分解:

$2^2\times 3^2\times {\mathrm{227}}^1\times {\mathrm{2503}}^1$

素因数の和:2740

約数の個数: 36

約数和(自身を含む): 51952992

約数和(自身を除く): 31498476

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 227, 454, 681, 908, 1362, 2043, 2503, 2724, 4086, 5006, 7509, 8172, 10012, 15018, 22527, 30036, 45054, 90108, 568181, 1136362, 1704543, 2272724, 3409086, 5113629, 6818172, 10227258, 20454516]

約数ペア:

[(1, 20454516), (2, 10227258), (3, 6818172), (4, 5113629), (6, 3409086), (9, 2272724), (12, 1704543), (18, 1136362), (36, 568181), (227, 90108), (454, 45054), (681, 30036), (908, 22527), (1362, 15018), (2043, 10012), (2503, 8172), (2724, 7509), (4086, 5006)]