209724760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{17419}}^1$

素因数の和:17480

約数の個数: 64

約数和(自身を含む): 551865600

約数和(自身を除く): 342140840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 860, 1204, 1505, 1720, 2408, 3010, 6020, 12040, 17419, 34838, 69676, 87095, 121933, 139352, 174190, 243866, 348380, 487732, 609665, 696760, 749017, 975464, 1219330, 1498034, 2438660, 2996068, 3745085, 4877320, 5243119, 5992136, 7490170, 10486238, 14980340, 20972476, 26215595, 29960680, 41944952, 52431190, 104862380, 209724760]

約数ペア:

[(1, 209724760), (2, 104862380), (4, 52431190), (5, 41944952), (7, 29960680), (8, 26215595), (10, 20972476), (14, 14980340), (20, 10486238), (28, 7490170), (35, 5992136), (40, 5243119), (43, 4877320), (56, 3745085), (70, 2996068), (86, 2438660), (140, 1498034), (172, 1219330), (215, 975464), (280, 749017), (301, 696760), (344, 609665), (430, 487732), (602, 348380), (860, 243866), (1204, 174190), (1505, 139352), (1720, 121933), (2408, 87095), (3010, 69676), (6020, 34838), (12040, 17419)]