12180220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{593}}^1$

素因数の和:694

約数の個数: 48

約数和(自身を含む): 27941760

約数和(自身を除く): 15761540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 593, 790, 1027, 1186, 1580, 2054, 2372, 2965, 4108, 5135, 5930, 7709, 10270, 11860, 15418, 20540, 30836, 38545, 46847, 77090, 93694, 154180, 187388, 234235, 468470, 609011, 936940, 1218022, 2436044, 3045055, 6090110, 12180220]

約数ペア:

[(1, 12180220), (2, 6090110), (4, 3045055), (5, 2436044), (10, 1218022), (13, 936940), (20, 609011), (26, 468470), (52, 234235), (65, 187388), (79, 154180), (130, 93694), (158, 77090), (260, 46847), (316, 38545), (395, 30836), (593, 20540), (790, 15418), (1027, 11860), (1186, 10270), (1580, 7709), (2054, 5930), (2372, 5135), (2965, 4108)]