13203905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{313}}^1$

素因数の和:401

約数の個数: 32

約数和(自身を含む): 18990720

約数和(自身を除く): 5786815

約数列:

[1, 5, 11, 13, 55, 59, 65, 143, 295, 313, 649, 715, 767, 1565, 3245, 3443, 3835, 4069, 8437, 17215, 18467, 20345, 42185, 44759, 92335, 203137, 223795, 240071, 1015685, 1200355, 2640781, 13203905]

約数ペア:

[(1, 13203905), (5, 2640781), (11, 1200355), (13, 1015685), (55, 240071), (59, 223795), (65, 203137), (143, 92335), (295, 44759), (313, 42185), (649, 20345), (715, 18467), (767, 17215), (1565, 8437), (3245, 4069), (3443, 3835)]