25139560

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15329}}^1$

素因数の和:15381

約数の個数: 32

約数和(自身を含む): 57947400

約数和(自身を除く): 32807840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 15329, 30658, 61316, 76645, 122632, 153290, 306580, 613160, 628489, 1256978, 2513956, 3142445, 5027912, 6284890, 12569780, 25139560]

約数ペア:

[(1, 25139560), (2, 12569780), (4, 6284890), (5, 5027912), (8, 3142445), (10, 2513956), (20, 1256978), (40, 628489), (41, 613160), (82, 306580), (164, 153290), (205, 122632), (328, 76645), (410, 61316), (820, 30658), (1640, 15329)]