389966355

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{10607}}^1$

素因数の和:10680

約数の個数: 48

約数和(自身を含む): 728133120

約数和(自身を除く): 338166765

約数列:

[1, 3, 5, 9, 15, 19, 43, 45, 57, 95, 129, 171, 215, 285, 387, 645, 817, 855, 1935, 2451, 4085, 7353, 10607, 12255, 31821, 36765, 53035, 95463, 159105, 201533, 456101, 477315, 604599, 1007665, 1368303, 1813797, 2280505, 3022995, 4104909, 6841515, 8665919, 9068985, 20524545, 25997757, 43329595, 77993271, 129988785, 389966355]

約数ペア:

[(1, 389966355), (3, 129988785), (5, 77993271), (9, 43329595), (15, 25997757), (19, 20524545), (43, 9068985), (45, 8665919), (57, 6841515), (95, 4104909), (129, 3022995), (171, 2280505), (215, 1813797), (285, 1368303), (387, 1007665), (645, 604599), (817, 477315), (855, 456101), (1935, 201533), (2451, 159105), (4085, 95463), (7353, 53035), (10607, 36765), (12255, 31821)]