13215545

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 20684160

約数和(自身を除く): 7468615

約数列:

[1, 5, 7, 17, 19, 35, 49, 85, 95, 119, 133, 167, 245, 323, 595, 665, 833, 835, 931, 1169, 1615, 2261, 2839, 3173, 4165, 4655, 5845, 8183, 11305, 14195, 15827, 15865, 19873, 22211, 40915, 53941, 79135, 99365, 111055, 139111, 155477, 269705, 377587, 695555, 777385, 1887935, 2643109, 13215545]

約数ペア:

[(1, 13215545), (5, 2643109), (7, 1887935), (17, 777385), (19, 695555), (35, 377587), (49, 269705), (85, 155477), (95, 139111), (119, 111055), (133, 99365), (167, 79135), (245, 53941), (323, 40915), (595, 22211), (665, 19873), (833, 15865), (835, 15827), (931, 14195), (1169, 11305), (1615, 8183), (2261, 5845), (2839, 4655), (3173, 4165)]