69821680

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{20297}}^1$

素因数の和:20353

約数の個数: 40

約数和(自身を含む): 166118832

約数和(自身を除く): 96297152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 20297, 40594, 81188, 101485, 162376, 202970, 324752, 405940, 811880, 872771, 1623760, 1745542, 3491084, 4363855, 6982168, 8727710, 13964336, 17455420, 34910840, 69821680]

約数ペア:

[(1, 69821680), (2, 34910840), (4, 17455420), (5, 13964336), (8, 8727710), (10, 6982168), (16, 4363855), (20, 3491084), (40, 1745542), (43, 1623760), (80, 872771), (86, 811880), (172, 405940), (215, 324752), (344, 202970), (430, 162376), (688, 101485), (860, 81188), (1720, 40594), (3440, 20297)]