12640316

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:294

約数の個数: 48

約数和(自身を含む): 25683840

約数和(自身を除く): 13043524

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 79, 158, 181, 221, 316, 362, 442, 724, 884, 1027, 1343, 2054, 2353, 2686, 3077, 4108, 4706, 5372, 6154, 9412, 12308, 14299, 17459, 28598, 34918, 40001, 57196, 69836, 80002, 160004, 185887, 243083, 371774, 486166, 743548, 972332, 3160079, 6320158, 12640316]

約数ペア:

[(1, 12640316), (2, 6320158), (4, 3160079), (13, 972332), (17, 743548), (26, 486166), (34, 371774), (52, 243083), (68, 185887), (79, 160004), (158, 80002), (181, 69836), (221, 57196), (316, 40001), (362, 34918), (442, 28598), (724, 17459), (884, 14299), (1027, 12308), (1343, 9412), (2054, 6154), (2353, 5372), (2686, 4706), (3077, 4108)]