28901020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{509}}^1$

素因数の和:702

約数の個数: 48

約数和(自身を含む): 64774080

約数和(自身を除く): 35873060

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 167, 170, 334, 340, 509, 668, 835, 1018, 1670, 2036, 2545, 2839, 3340, 5090, 5678, 8653, 10180, 11356, 14195, 17306, 28390, 34612, 43265, 56780, 85003, 86530, 170006, 173060, 340012, 425015, 850030, 1445051, 1700060, 2890102, 5780204, 7225255, 14450510, 28901020]

約数ペア:

[(1, 28901020), (2, 14450510), (4, 7225255), (5, 5780204), (10, 2890102), (17, 1700060), (20, 1445051), (34, 850030), (68, 425015), (85, 340012), (167, 173060), (170, 170006), (334, 86530), (340, 85003), (509, 56780), (668, 43265), (835, 34612), (1018, 28390), (1670, 17306), (2036, 14195), (2545, 11356), (2839, 10180), (3340, 8653), (5090, 5678)]