171311840

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{21851}}^1$

素因数の和:21880

約数の個数: 72

約数和(自身を含む): 470823192

約数和(自身を除く): 299511352

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, 21851, 43702, 87404, 109255, 152957, 174808, 218510, 305914, 349616, 437020, 611828, 699232, 764785, 874040, 1070699, 1223656, 1529570, 1748080, 2141398, 2447312, 3059140, 3496160, 4282796, 4894624, 5353495, 6118280, 8565592, 10706990, 12236560, 17131184, 21413980, 24473120, 34262368, 42827960, 85655920, 171311840]

約数ペア:

[(1, 171311840), (2, 85655920), (4, 42827960), (5, 34262368), (7, 24473120), (8, 21413980), (10, 17131184), (14, 12236560), (16, 10706990), (20, 8565592), (28, 6118280), (32, 5353495), (35, 4894624), (40, 4282796), (49, 3496160), (56, 3059140), (70, 2447312), (80, 2141398), (98, 1748080), (112, 1529570), (140, 1223656), (160, 1070699), (196, 874040), (224, 764785), (245, 699232), (280, 611828), (392, 437020), (490, 349616), (560, 305914), (784, 218510), (980, 174808), (1120, 152957), (1568, 109255), (1960, 87404), (3920, 43702), (7840, 21851)]