28071760

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20641}}^1$

素因数の和:20671

約数の個数: 40

約数和(自身を含む): 69109416

約数和(自身を除く): 41037656

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 20641, 41282, 82564, 103205, 165128, 206410, 330256, 350897, 412820, 701794, 825640, 1403588, 1651280, 1754485, 2807176, 3508970, 5614352, 7017940, 14035880, 28071760]

約数ペア:

[(1, 28071760), (2, 14035880), (4, 7017940), (5, 5614352), (8, 3508970), (10, 2807176), (16, 1754485), (17, 1651280), (20, 1403588), (34, 825640), (40, 701794), (68, 412820), (80, 350897), (85, 330256), (136, 206410), (170, 165128), (272, 103205), (340, 82564), (680, 41282), (1360, 20641)]