78166640

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{20789}}^1$

素因数の和:20849

約数の個数: 40

約数和(自身を含む): 185613120

約数和(自身を除く): 107446480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 20789, 41578, 83156, 103945, 166312, 207890, 332624, 415780, 831560, 977083, 1663120, 1954166, 3908332, 4885415, 7816664, 9770830, 15633328, 19541660, 39083320, 78166640]

約数ペア:

[(1, 78166640), (2, 39083320), (4, 19541660), (5, 15633328), (8, 9770830), (10, 7816664), (16, 4885415), (20, 3908332), (40, 1954166), (47, 1663120), (80, 977083), (94, 831560), (188, 415780), (235, 332624), (376, 207890), (470, 166312), (752, 103945), (940, 83156), (1880, 41578), (3760, 20789)]