171405920

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{21863}}^1$

素因数の和:21892

約数の個数: 72

約数和(自身を含む): 471081744

約数和(自身を除く): 299675824

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 21863, 43726, 87452, 109315, 153041, 174904, 218630, 306082, 349808, 437260, 612164, 699616, 765205, 874520, 1071287, 1224328, 1530410, 1749040, 2142574, 2448656, 3060820, 3498080, 4285148, 4897312, 5356435, 6121640, 8570296, 10712870, 12243280, 17140592, 21425740, 24486560, 34281184, 42851480, 85702960, 171405920]

約数ペア:

[(1, 171405920), (2, 85702960), (4, 42851480), (5, 34281184), (7, 24486560), (8, 21425740), (10, 17140592), (14, 12243280), (16, 10712870), (20, 8570296), (28, 6121640), (32, 5356435), (35, 4897312), (40, 4285148), (49, 3498080), (56, 3060820), (70, 2448656), (80, 2142574), (98, 1749040), (112, 1530410), (140, 1224328), (160, 1071287), (196, 874520), (224, 765205), (245, 699616), (280, 612164), (392, 437260), (490, 349808), (560, 306082), (784, 218630), (980, 174904), (1120, 153041), (1568, 109315), (1960, 87452), (3920, 43726), (7840, 21863)]