208243090

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^2\times {\mathrm{239}}^1$

素因数の和:435

約数の個数: 48

約数和(自身を含む): 415290240

約数和(自身を除く): 207047150

約数列:

[1, 2, 5, 10, 11, 22, 55, 89, 110, 178, 239, 445, 478, 890, 979, 1195, 1958, 2390, 2629, 4895, 5258, 7921, 9790, 13145, 15842, 21271, 26290, 39605, 42542, 79210, 87131, 106355, 174262, 212710, 233981, 435655, 467962, 871310, 1169905, 1893119, 2339810, 3786238, 9465595, 18931190, 20824309, 41648618, 104121545, 208243090]

約数ペア:

[(1, 208243090), (2, 104121545), (5, 41648618), (10, 20824309), (11, 18931190), (22, 9465595), (55, 3786238), (89, 2339810), (110, 1893119), (178, 1169905), (239, 871310), (445, 467962), (478, 435655), (890, 233981), (979, 212710), (1195, 174262), (1958, 106355), (2390, 87131), (2629, 79210), (4895, 42542), (5258, 39605), (7921, 26290), (9790, 21271), (13145, 15842)]