31461165

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 56833920

約数和(自身を除く): 25372755

約数列:

[1, 3, 5, 9, 15, 43, 45, 71, 129, 213, 215, 229, 355, 387, 639, 645, 687, 1065, 1145, 1935, 2061, 3053, 3195, 3435, 9159, 9847, 10305, 15265, 16259, 27477, 29541, 45795, 48777, 49235, 81295, 88623, 137385, 146331, 147705, 243885, 443115, 699137, 731655, 2097411, 3495685, 6292233, 10487055, 31461165]

約数ペア:

[(1, 31461165), (3, 10487055), (5, 6292233), (9, 3495685), (15, 2097411), (43, 731655), (45, 699137), (71, 443115), (129, 243885), (213, 147705), (215, 146331), (229, 137385), (355, 88623), (387, 81295), (639, 49235), (645, 48777), (687, 45795), (1065, 29541), (1145, 27477), (1935, 16259), (2061, 15265), (3053, 10305), (3195, 9847), (3435, 9159)]