25944820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:253

約数の個数: 72

約数和(自身を含む): 61133184

約数和(自身を除く): 35188364

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 121, 142, 151, 220, 242, 284, 302, 355, 484, 604, 605, 710, 755, 781, 1210, 1420, 1510, 1562, 1661, 2420, 3020, 3124, 3322, 3905, 6644, 7810, 8305, 8591, 10721, 15620, 16610, 17182, 18271, 21442, 33220, 34364, 36542, 42884, 42955, 53605, 73084, 85910, 91355, 107210, 117931, 171820, 182710, 214420, 235862, 365420, 471724, 589655, 1179310, 1297241, 2358620, 2594482, 5188964, 6486205, 12972410, 25944820]

約数ペア:

[(1, 25944820), (2, 12972410), (4, 6486205), (5, 5188964), (10, 2594482), (11, 2358620), (20, 1297241), (22, 1179310), (44, 589655), (55, 471724), (71, 365420), (110, 235862), (121, 214420), (142, 182710), (151, 171820), (220, 117931), (242, 107210), (284, 91355), (302, 85910), (355, 73084), (484, 53605), (604, 42955), (605, 42884), (710, 36542), (755, 34364), (781, 33220), (1210, 21442), (1420, 18271), (1510, 17182), (1562, 16610), (1661, 15620), (2420, 10721), (3020, 8591), (3124, 8305), (3322, 7810), (3905, 6644)]