31499865

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{223}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 56888832

約数和(自身を除く): 25388967

約数列:

[1, 3, 5, 9, 15, 43, 45, 73, 129, 215, 219, 223, 365, 387, 645, 657, 669, 1095, 1115, 1935, 2007, 3139, 3285, 3345, 9417, 9589, 10035, 15695, 16279, 28251, 28767, 47085, 47945, 48837, 81395, 86301, 141255, 143835, 146511, 244185, 431505, 699997, 732555, 2099991, 3499985, 6299973, 10499955, 31499865]

約数ペア:

[(1, 31499865), (3, 10499955), (5, 6299973), (9, 3499985), (15, 2099991), (43, 732555), (45, 699997), (73, 431505), (129, 244185), (215, 146511), (219, 143835), (223, 141255), (365, 86301), (387, 81395), (645, 48837), (657, 47945), (669, 47085), (1095, 28767), (1115, 28251), (1935, 16279), (2007, 15695), (3139, 10035), (3285, 9589), (3345, 9417)]