28906120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{42509}}^1$

素因数の和:42537

約数の個数: 32

約数和(自身を含む): 68866200

約数和(自身を除く): 39960080

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 42509, 85018, 170036, 212545, 340072, 425090, 722653, 850180, 1445306, 1700360, 2890612, 3613265, 5781224, 7226530, 14453060, 28906120]

約数ペア:

[(1, 28906120), (2, 14453060), (4, 7226530), (5, 5781224), (8, 3613265), (10, 2890612), (17, 1700360), (20, 1445306), (34, 850180), (40, 722653), (68, 425090), (85, 340072), (136, 212545), (170, 170036), (340, 85018), (680, 42509)]