85006720

素因数分解:

$2^7\times 5^1\times {\mathrm{317}}^1\times {\mathrm{419}}^1$

素因数の和:755

約数の個数: 64

約数和(自身を含む): 204346800

約数和(自身を除く): 119340080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 317, 320, 419, 634, 640, 838, 1268, 1585, 1676, 2095, 2536, 3170, 3352, 4190, 5072, 6340, 6704, 8380, 10144, 12680, 13408, 16760, 20288, 25360, 26816, 33520, 40576, 50720, 53632, 67040, 101440, 132823, 134080, 202880, 265646, 268160, 531292, 664115, 1062584, 1328230, 2125168, 2656460, 4250336, 5312920, 8500672, 10625840, 17001344, 21251680, 42503360, 85006720]

約数ペア:

[(1, 85006720), (2, 42503360), (4, 21251680), (5, 17001344), (8, 10625840), (10, 8500672), (16, 5312920), (20, 4250336), (32, 2656460), (40, 2125168), (64, 1328230), (80, 1062584), (128, 664115), (160, 531292), (317, 268160), (320, 265646), (419, 202880), (634, 134080), (640, 132823), (838, 101440), (1268, 67040), (1585, 53632), (1676, 50720), (2095, 40576), (2536, 33520), (3170, 26816), (3352, 25360), (4190, 20288), (5072, 16760), (6340, 13408), (6704, 12680), (8380, 10144)]