28560280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{102001}}^1$

素因数の和:102019

約数の個数: 32

約数和(自身を含む): 73441440

約数和(自身を除く): 44881160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 102001, 204002, 408004, 510005, 714007, 816008, 1020010, 1428014, 2040020, 2856028, 3570035, 4080040, 5712056, 7140070, 14280140, 28560280]

約数ペア:

[(1, 28560280), (2, 14280140), (4, 7140070), (5, 5712056), (7, 4080040), (8, 3570035), (10, 2856028), (14, 2040020), (20, 1428014), (28, 1020010), (35, 816008), (40, 714007), (56, 510005), (70, 408004), (140, 204002), (280, 102001)]