12399205

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 19822320

約数和(自身を除く): 7423115

約数列:

[1, 5, 7, 13, 17, 35, 49, 65, 85, 91, 119, 221, 229, 245, 455, 595, 637, 833, 1105, 1145, 1547, 1603, 2977, 3185, 3893, 4165, 7735, 8015, 10829, 11221, 14885, 19465, 20839, 27251, 50609, 54145, 56105, 104195, 136255, 145873, 190757, 253045, 354263, 729365, 953785, 1771315, 2479841, 12399205]

約数ペア:

[(1, 12399205), (5, 2479841), (7, 1771315), (13, 953785), (17, 729365), (35, 354263), (49, 253045), (65, 190757), (85, 145873), (91, 136255), (119, 104195), (221, 56105), (229, 54145), (245, 50609), (455, 27251), (595, 20839), (637, 19465), (833, 14885), (1105, 11221), (1145, 10829), (1547, 8015), (1603, 7735), (2977, 4165), (3185, 3893)]