20372475

素因数分解:

$3^1\times 5^2\times {\mathrm{61}}^2\times {\mathrm{73}}^1$

素因数の和:208

約数の個数: 36

約数和(自身を含む): 34712808

約数和(自身を除く): 14340333

約数列:

[1, 3, 5, 15, 25, 61, 73, 75, 183, 219, 305, 365, 915, 1095, 1525, 1825, 3721, 4453, 4575, 5475, 11163, 13359, 18605, 22265, 55815, 66795, 93025, 111325, 271633, 279075, 333975, 814899, 1358165, 4074495, 6790825, 20372475]

約数ペア:

[(1, 20372475), (3, 6790825), (5, 4074495), (15, 1358165), (25, 814899), (61, 333975), (73, 279075), (75, 271633), (183, 111325), (219, 93025), (305, 66795), (365, 55815), (915, 22265), (1095, 18605), (1525, 13359), (1825, 11163), (3721, 5475), (4453, 4575)]