20718185325

素因数分解:

$3^1\times 5^2\times {\mathrm{229}}^1\times {\mathrm{487}}^1\times {\mathrm{2477}}^1$

素因数の和:3206

約数の個数: 48

約数和(自身を含む): 34488209280

約数和(自身を除く): 13770023955

約数列:

[1, 3, 5, 15, 25, 75, 229, 487, 687, 1145, 1461, 2435, 2477, 3435, 5725, 7305, 7431, 12175, 12385, 17175, 36525, 37155, 61925, 111523, 185775, 334569, 557615, 567233, 1206299, 1672845, 1701699, 2788075, 2836165, 3618897, 6031495, 8364225, 8508495, 14180825, 18094485, 30157475, 42542475, 90472425, 276242471, 828727413, 1381212355, 4143637065, 6906061775, 20718185325]

約数ペア:

[(1, 20718185325), (3, 6906061775), (5, 4143637065), (15, 1381212355), (25, 828727413), (75, 276242471), (229, 90472425), (487, 42542475), (687, 30157475), (1145, 18094485), (1461, 14180825), (2435, 8508495), (2477, 8364225), (3435, 6031495), (5725, 3618897), (7305, 2836165), (7431, 2788075), (12175, 1701699), (12385, 1672845), (17175, 1206299), (36525, 567233), (37155, 557615), (61925, 334569), (111523, 185775)]