12640265

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{1229}}^1$

素因数の和:1273

約数の個数: 24

約数和(自身を含む): 17667720

約数和(自身を除く): 5027455

約数列:

[1, 5, 11, 17, 55, 85, 121, 187, 605, 935, 1229, 2057, 6145, 10285, 13519, 20893, 67595, 104465, 148709, 229823, 743545, 1149115, 2528053, 12640265]

約数ペア:

[(1, 12640265), (5, 2528053), (11, 1149115), (17, 743545), (55, 229823), (85, 148709), (121, 104465), (187, 67595), (605, 20893), (935, 13519), (1229, 10285), (2057, 6145)]