397745960

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{2549}}^1$

素因数の和:2690

約数の個数: 64

約数和(自身を含む): 925344000

約数和(自身を除く): 527598040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 83, 94, 166, 188, 235, 332, 376, 415, 470, 664, 830, 940, 1660, 1880, 2549, 3320, 3901, 5098, 7802, 10196, 12745, 15604, 19505, 20392, 25490, 31208, 39010, 50980, 78020, 101960, 119803, 156040, 211567, 239606, 423134, 479212, 599015, 846268, 958424, 1057835, 1198030, 1692536, 2115670, 2396060, 4231340, 4792120, 8462680, 9943649, 19887298, 39774596, 49718245, 79549192, 99436490, 198872980, 397745960]

約数ペア:

[(1, 397745960), (2, 198872980), (4, 99436490), (5, 79549192), (8, 49718245), (10, 39774596), (20, 19887298), (40, 9943649), (47, 8462680), (83, 4792120), (94, 4231340), (166, 2396060), (188, 2115670), (235, 1692536), (332, 1198030), (376, 1057835), (415, 958424), (470, 846268), (664, 599015), (830, 479212), (940, 423134), (1660, 239606), (1880, 211567), (2549, 156040), (3320, 119803), (3901, 101960), (5098, 78020), (7802, 50980), (10196, 39010), (12745, 31208), (15604, 25490), (19505, 20392)]