25855390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:265

約数の個数: 64

約数和(自身を含む): 54432000

約数和(自身を除く): 28576610

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 89, 95, 110, 139, 178, 190, 209, 278, 418, 445, 695, 890, 979, 1045, 1390, 1529, 1691, 1958, 2090, 2641, 3058, 3382, 4895, 5282, 7645, 8455, 9790, 12371, 13205, 15290, 16910, 18601, 24742, 26410, 29051, 37202, 58102, 61855, 93005, 123710, 136081, 145255, 186010, 235049, 272162, 290510, 470098, 680405, 1175245, 1360810, 2350490, 2585539, 5171078, 12927695, 25855390]

約数ペア:

[(1, 25855390), (2, 12927695), (5, 5171078), (10, 2585539), (11, 2350490), (19, 1360810), (22, 1175245), (38, 680405), (55, 470098), (89, 290510), (95, 272162), (110, 235049), (139, 186010), (178, 145255), (190, 136081), (209, 123710), (278, 93005), (418, 61855), (445, 58102), (695, 37202), (890, 29051), (979, 26410), (1045, 24742), (1390, 18601), (1529, 16910), (1691, 15290), (1958, 13205), (2090, 12371), (2641, 9790), (3058, 8455), (3382, 7645), (4895, 5282)]