12855440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1$

素因数の和:336

約数の個数: 80

約数和(自身を含む): 32997888

約数和(自身を除く): 20142448

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 47, 52, 65, 80, 94, 104, 130, 188, 208, 235, 260, 263, 376, 470, 520, 526, 611, 752, 940, 1040, 1052, 1222, 1315, 1880, 2104, 2444, 2630, 3055, 3419, 3760, 4208, 4888, 5260, 6110, 6838, 9776, 10520, 12220, 12361, 13676, 17095, 21040, 24440, 24722, 27352, 34190, 48880, 49444, 54704, 61805, 68380, 98888, 123610, 136760, 160693, 197776, 247220, 273520, 321386, 494440, 642772, 803465, 988880, 1285544, 1606930, 2571088, 3213860, 6427720, 12855440]

約数ペア:

[(1, 12855440), (2, 6427720), (4, 3213860), (5, 2571088), (8, 1606930), (10, 1285544), (13, 988880), (16, 803465), (20, 642772), (26, 494440), (40, 321386), (47, 273520), (52, 247220), (65, 197776), (80, 160693), (94, 136760), (104, 123610), (130, 98888), (188, 68380), (208, 61805), (235, 54704), (260, 49444), (263, 48880), (376, 34190), (470, 27352), (520, 24722), (526, 24440), (611, 21040), (752, 17095), (940, 13676), (1040, 12361), (1052, 12220), (1222, 10520), (1315, 9776), (1880, 6838), (2104, 6110), (2444, 5260), (2630, 4888), (3055, 4208), (3419, 3760)]