77566640

素因数分解:

$2^4\times 5^1\times {\mathrm{907}}^1\times {\mathrm{1069}}^1$

素因数の和:1989

約数の個数: 40

約数和(自身を含む): 180710160

約数和(自身を除く): 103143520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 907, 1069, 1814, 2138, 3628, 4276, 4535, 5345, 7256, 8552, 9070, 10690, 14512, 17104, 18140, 21380, 36280, 42760, 72560, 85520, 969583, 1939166, 3878332, 4847915, 7756664, 9695830, 15513328, 19391660, 38783320, 77566640]

約数ペア:

[(1, 77566640), (2, 38783320), (4, 19391660), (5, 15513328), (8, 9695830), (10, 7756664), (16, 4847915), (20, 3878332), (40, 1939166), (80, 969583), (907, 85520), (1069, 72560), (1814, 42760), (2138, 36280), (3628, 21380), (4276, 18140), (4535, 17104), (5345, 14512), (7256, 10690), (8552, 9070)]