123615640

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^2\times {\mathrm{1399}}^1$

素因数の和:1504

約数の個数: 48

約数和(自身を含む): 284382000

約数和(自身を除く): 160766360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1399, 1880, 2209, 2798, 4418, 5596, 6995, 8836, 11045, 11192, 13990, 17672, 22090, 27980, 44180, 55960, 65753, 88360, 131506, 263012, 328765, 526024, 657530, 1315060, 2630120, 3090391, 6180782, 12361564, 15451955, 24723128, 30903910, 61807820, 123615640]

約数ペア:

[(1, 123615640), (2, 61807820), (4, 30903910), (5, 24723128), (8, 15451955), (10, 12361564), (20, 6180782), (40, 3090391), (47, 2630120), (94, 1315060), (188, 657530), (235, 526024), (376, 328765), (470, 263012), (940, 131506), (1399, 88360), (1880, 65753), (2209, 55960), (2798, 44180), (4418, 27980), (5596, 22090), (6995, 17672), (8836, 13990), (11045, 11192)]