11981800

素因数分解:

$2^3\times 5^2\times {\mathrm{139}}^1\times {\mathrm{431}}^1$

素因数の和:586

約数の個数: 48

約数和(自身を含む): 28123200

約数和(自身を除く): 16141400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 139, 200, 278, 431, 556, 695, 862, 1112, 1390, 1724, 2155, 2780, 3448, 3475, 4310, 5560, 6950, 8620, 10775, 13900, 17240, 21550, 27800, 43100, 59909, 86200, 119818, 239636, 299545, 479272, 599090, 1198180, 1497725, 2396360, 2995450, 5990900, 11981800]

約数ペア:

[(1, 11981800), (2, 5990900), (4, 2995450), (5, 2396360), (8, 1497725), (10, 1198180), (20, 599090), (25, 479272), (40, 299545), (50, 239636), (100, 119818), (139, 86200), (200, 59909), (278, 43100), (431, 27800), (556, 21550), (695, 17240), (862, 13900), (1112, 10775), (1390, 8620), (1724, 6950), (2155, 5560), (2780, 4310), (3448, 3475)]