25325480

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{709}}^1$

素因数の和:786

約数の個数: 64

約数和(自身を含む): 61344000

約数和(自身を除く): 36018520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 47, 76, 94, 95, 152, 188, 190, 235, 376, 380, 470, 709, 760, 893, 940, 1418, 1786, 1880, 2836, 3545, 3572, 4465, 5672, 7090, 7144, 8930, 13471, 14180, 17860, 26942, 28360, 33323, 35720, 53884, 66646, 67355, 107768, 133292, 134710, 166615, 266584, 269420, 333230, 538840, 633137, 666460, 1266274, 1332920, 2532548, 3165685, 5065096, 6331370, 12662740, 25325480]

約数ペア:

[(1, 25325480), (2, 12662740), (4, 6331370), (5, 5065096), (8, 3165685), (10, 2532548), (19, 1332920), (20, 1266274), (38, 666460), (40, 633137), (47, 538840), (76, 333230), (94, 269420), (95, 266584), (152, 166615), (188, 134710), (190, 133292), (235, 107768), (376, 67355), (380, 66646), (470, 53884), (709, 35720), (760, 33323), (893, 28360), (940, 26942), (1418, 17860), (1786, 14180), (1880, 13471), (2836, 8930), (3545, 7144), (3572, 7090), (4465, 5672)]