247879515

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{383}}^1\times {\mathrm{3319}}^1$

素因数の和:3723

約数の個数: 32

約数和(自身を含む): 428359680

約数和(自身を除く): 180480165

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 383, 1149, 1915, 3319, 4979, 5745, 9957, 14937, 16595, 24895, 43147, 49785, 74685, 129441, 215735, 647205, 1271177, 3813531, 6355885, 16525301, 19067655, 49575903, 82626505, 247879515]

約数ペア:

[(1, 247879515), (3, 82626505), (5, 49575903), (13, 19067655), (15, 16525301), (39, 6355885), (65, 3813531), (195, 1271177), (383, 647205), (1149, 215735), (1915, 129441), (3319, 74685), (4979, 49785), (5745, 43147), (9957, 24895), (14937, 16595)]