25911580

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{317}}^1$

素因数の和:454

約数の個数: 48

約数和(自身を含む): 56308896

約数和(自身を除く): 30397316

約数列:

[1, 2, 4, 5, 10, 20, 61, 67, 122, 134, 244, 268, 305, 317, 335, 610, 634, 670, 1220, 1268, 1340, 1585, 3170, 4087, 6340, 8174, 16348, 19337, 20435, 21239, 38674, 40870, 42478, 77348, 81740, 84956, 96685, 106195, 193370, 212390, 386740, 424780, 1295579, 2591158, 5182316, 6477895, 12955790, 25911580]

約数ペア:

[(1, 25911580), (2, 12955790), (4, 6477895), (5, 5182316), (10, 2591158), (20, 1295579), (61, 424780), (67, 386740), (122, 212390), (134, 193370), (244, 106195), (268, 96685), (305, 84956), (317, 81740), (335, 77348), (610, 42478), (634, 40870), (670, 38674), (1220, 21239), (1268, 20435), (1340, 19337), (1585, 16348), (3170, 8174), (4087, 6340)]