2158975

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{73}}^1$

素因数の和:116

約数の個数: 36

約数和(自身を含む): 3358416

約数和(自身を除く): 1199441

約数列:

[1, 5, 7, 13, 25, 35, 65, 73, 91, 169, 175, 325, 365, 455, 511, 845, 949, 1183, 1825, 2275, 2555, 4225, 4745, 5915, 6643, 12337, 12775, 23725, 29575, 33215, 61685, 86359, 166075, 308425, 431795, 2158975]

約数ペア:

[(1, 2158975), (5, 431795), (7, 308425), (13, 166075), (25, 86359), (35, 61685), (65, 33215), (73, 29575), (91, 23725), (169, 12775), (175, 12337), (325, 6643), (365, 5915), (455, 4745), (511, 4225), (845, 2555), (949, 2275), (1183, 1825)]