12803680

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1861}}^1$

素因数の和:1919

約数の個数: 48

約数和(自身を含む): 30968784

約数和(自身を除く): 18165104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 1861, 3440, 3722, 6880, 7444, 9305, 14888, 18610, 29776, 37220, 59552, 74440, 80023, 148880, 160046, 297760, 320092, 400115, 640184, 800230, 1280368, 1600460, 2560736, 3200920, 6401840, 12803680]

約数ペア:

[(1, 12803680), (2, 6401840), (4, 3200920), (5, 2560736), (8, 1600460), (10, 1280368), (16, 800230), (20, 640184), (32, 400115), (40, 320092), (43, 297760), (80, 160046), (86, 148880), (160, 80023), (172, 74440), (215, 59552), (344, 37220), (430, 29776), (688, 18610), (860, 14888), (1376, 9305), (1720, 7444), (1861, 6880), (3440, 3722)]