39621920

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{443}}^1$

素因数の和:514

約数の個数: 96

約数和(自身を含む): 103384512

約数和(自身を除く): 63762592

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 43, 52, 65, 80, 86, 104, 130, 160, 172, 208, 215, 260, 344, 416, 430, 443, 520, 559, 688, 860, 886, 1040, 1118, 1376, 1720, 1772, 2080, 2215, 2236, 2795, 3440, 3544, 4430, 4472, 5590, 5759, 6880, 7088, 8860, 8944, 11180, 11518, 14176, 17720, 17888, 19049, 22360, 23036, 28795, 35440, 38098, 44720, 46072, 57590, 70880, 76196, 89440, 92144, 95245, 115180, 152392, 184288, 190490, 230360, 247637, 304784, 380980, 460720, 495274, 609568, 761960, 921440, 990548, 1238185, 1523920, 1981096, 2476370, 3047840, 3962192, 4952740, 7924384, 9905480, 19810960, 39621920]

約数ペア:

[(1, 39621920), (2, 19810960), (4, 9905480), (5, 7924384), (8, 4952740), (10, 3962192), (13, 3047840), (16, 2476370), (20, 1981096), (26, 1523920), (32, 1238185), (40, 990548), (43, 921440), (52, 761960), (65, 609568), (80, 495274), (86, 460720), (104, 380980), (130, 304784), (160, 247637), (172, 230360), (208, 190490), (215, 184288), (260, 152392), (344, 115180), (416, 95245), (430, 92144), (443, 89440), (520, 76196), (559, 70880), (688, 57590), (860, 46072), (886, 44720), (1040, 38098), (1118, 35440), (1376, 28795), (1720, 23036), (1772, 22360), (2080, 19049), (2215, 17888), (2236, 17720), (2795, 14176), (3440, 11518), (3544, 11180), (4430, 8944), (4472, 8860), (5590, 7088), (5759, 6880)]