400725904

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{1473257}}^1$

素因数の和:1473282

約数の個数: 20

約数和(自身を含む): 822077964

約数和(自身を除く): 421352060

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 1473257, 2946514, 5893028, 11786056, 23572112, 25045369, 50090738, 100181476, 200362952, 400725904]

約数ペア:

[(1, 400725904), (2, 200362952), (4, 100181476), (8, 50090738), (16, 25045369), (17, 23572112), (34, 11786056), (68, 5893028), (136, 2946514), (272, 1473257)]