85364680

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{3319}}^1$

素因数の和:3973

約数の個数: 32

約数和(自身を含む): 192427200

約数和(自身を除く): 107062520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2572, 3215, 3319, 5144, 6430, 6638, 12860, 13276, 16595, 25720, 26552, 33190, 66380, 132760, 2134117, 4268234, 8536468, 10670585, 17072936, 21341170, 42682340, 85364680]

約数ペア:

[(1, 85364680), (2, 42682340), (4, 21341170), (5, 17072936), (8, 10670585), (10, 8536468), (20, 4268234), (40, 2134117), (643, 132760), (1286, 66380), (2572, 33190), (3215, 26552), (3319, 25720), (5144, 16595), (6430, 13276), (6638, 12860)]