12581920

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{263}}^1$

素因数の和:314

約数の個数: 96

約数和(自身を含む): 33530112

約数和(自身を除く): 20948192

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 65, 80, 92, 104, 115, 130, 160, 184, 208, 230, 260, 263, 299, 368, 416, 460, 520, 526, 598, 736, 920, 1040, 1052, 1196, 1315, 1495, 1840, 2080, 2104, 2392, 2630, 2990, 3419, 3680, 4208, 4784, 5260, 5980, 6049, 6838, 8416, 9568, 10520, 11960, 12098, 13676, 17095, 21040, 23920, 24196, 27352, 30245, 34190, 42080, 47840, 48392, 54704, 60490, 68380, 78637, 96784, 109408, 120980, 136760, 157274, 193568, 241960, 273520, 314548, 393185, 483920, 547040, 629096, 786370, 967840, 1258192, 1572740, 2516384, 3145480, 6290960, 12581920]

約数ペア:

[(1, 12581920), (2, 6290960), (4, 3145480), (5, 2516384), (8, 1572740), (10, 1258192), (13, 967840), (16, 786370), (20, 629096), (23, 547040), (26, 483920), (32, 393185), (40, 314548), (46, 273520), (52, 241960), (65, 193568), (80, 157274), (92, 136760), (104, 120980), (115, 109408), (130, 96784), (160, 78637), (184, 68380), (208, 60490), (230, 54704), (260, 48392), (263, 47840), (299, 42080), (368, 34190), (416, 30245), (460, 27352), (520, 24196), (526, 23920), (598, 21040), (736, 17095), (920, 13676), (1040, 12098), (1052, 11960), (1196, 10520), (1315, 9568), (1495, 8416), (1840, 6838), (2080, 6049), (2104, 5980), (2392, 5260), (2630, 4784), (2990, 4208), (3419, 3680)]