320420720

素因数分解:

$2^4\times 5^1\times {\mathrm{877}}^1\times {\mathrm{4567}}^1$

素因数の和:5457

約数の個数: 40

約数和(自身を含む): 745990944

約数和(自身を除く): 425570224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 877, 1754, 3508, 4385, 4567, 7016, 8770, 9134, 14032, 17540, 18268, 22835, 35080, 36536, 45670, 70160, 73072, 91340, 182680, 365360, 4005259, 8010518, 16021036, 20026295, 32042072, 40052590, 64084144, 80105180, 160210360, 320420720]

約数ペア:

[(1, 320420720), (2, 160210360), (4, 80105180), (5, 64084144), (8, 40052590), (10, 32042072), (16, 20026295), (20, 16021036), (40, 8010518), (80, 4005259), (877, 365360), (1754, 182680), (3508, 91340), (4385, 73072), (4567, 70160), (7016, 45670), (8770, 36536), (9134, 35080), (14032, 22835), (17540, 18268)]