61439980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{409}}^1$

素因数の和:491

約数の個数: 96

約数和(自身を含む): 157046400

約数和(自身を除く): 95606420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 37, 58, 70, 74, 116, 140, 145, 148, 185, 203, 259, 290, 370, 406, 409, 518, 580, 740, 812, 818, 1015, 1036, 1073, 1295, 1636, 2030, 2045, 2146, 2590, 2863, 4060, 4090, 4292, 5180, 5365, 5726, 7511, 8180, 10730, 11452, 11861, 14315, 15022, 15133, 21460, 23722, 28630, 30044, 30266, 37555, 47444, 57260, 59305, 60532, 75110, 75665, 83027, 105931, 118610, 150220, 151330, 166054, 211862, 237220, 302660, 332108, 415135, 423724, 438857, 529655, 830270, 877714, 1059310, 1660540, 1755428, 2118620, 2194285, 3071999, 4388570, 6143998, 8777140, 12287996, 15359995, 30719990, 61439980]

約数ペア:

[(1, 61439980), (2, 30719990), (4, 15359995), (5, 12287996), (7, 8777140), (10, 6143998), (14, 4388570), (20, 3071999), (28, 2194285), (29, 2118620), (35, 1755428), (37, 1660540), (58, 1059310), (70, 877714), (74, 830270), (116, 529655), (140, 438857), (145, 423724), (148, 415135), (185, 332108), (203, 302660), (259, 237220), (290, 211862), (370, 166054), (406, 151330), (409, 150220), (518, 118610), (580, 105931), (740, 83027), (812, 75665), (818, 75110), (1015, 60532), (1036, 59305), (1073, 57260), (1295, 47444), (1636, 37555), (2030, 30266), (2045, 30044), (2146, 28630), (2590, 23722), (2863, 21460), (4060, 15133), (4090, 15022), (4292, 14315), (5180, 11861), (5365, 11452), (5726, 10730), (7511, 8180)]