198272140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{20959}}^1$

素因数の和:21022

約数の個数: 48

約数和(自身を含む): 464808960

約数和(自身を除く): 266536820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2365, 4730, 9460, 20959, 41918, 83836, 104795, 209590, 230549, 419180, 461098, 901237, 922196, 1152745, 1802474, 2305490, 3604948, 4506185, 4610980, 9012370, 9913607, 18024740, 19827214, 39654428, 49568035, 99136070, 198272140]

約数ペア:

[(1, 198272140), (2, 99136070), (4, 49568035), (5, 39654428), (10, 19827214), (11, 18024740), (20, 9913607), (22, 9012370), (43, 4610980), (44, 4506185), (55, 3604948), (86, 2305490), (110, 1802474), (172, 1152745), (215, 922196), (220, 901237), (430, 461098), (473, 419180), (860, 230549), (946, 209590), (1892, 104795), (2365, 83836), (4730, 41918), (9460, 20959)]