25661080

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15647}}^1$

素因数の和:15699

約数の個数: 32

約数和(自身を含む): 59149440

約数和(自身を除く): 33488360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 15647, 31294, 62588, 78235, 125176, 156470, 312940, 625880, 641527, 1283054, 2566108, 3207635, 5132216, 6415270, 12830540, 25661080]

約数ペア:

[(1, 25661080), (2, 12830540), (4, 6415270), (5, 5132216), (8, 3207635), (10, 2566108), (20, 1283054), (40, 641527), (41, 625880), (82, 312940), (164, 156470), (205, 125176), (328, 78235), (410, 62588), (820, 31294), (1640, 15647)]