159444400

素因数分解:

$2^4\times 5^2\times {\mathrm{398611}}^1$

素因数の和:398629

約数の個数: 30

約数和(自身を含む): 383066132

約数和(自身を除く): 223621732

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 398611, 797222, 1594444, 1993055, 3188888, 3986110, 6377776, 7972220, 9965275, 15944440, 19930550, 31888880, 39861100, 79722200, 159444400]

約数ペア:

[(1, 159444400), (2, 79722200), (4, 39861100), (5, 31888880), (8, 19930550), (10, 15944440), (16, 9965275), (20, 7972220), (25, 6377776), (40, 3986110), (50, 3188888), (80, 1993055), (100, 1594444), (200, 797222), (400, 398611)]