165749720

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{42719}}^1$

素因数の和:42827

約数の個数: 32

約数和(自身を含む): 376790400

約数和(自身を除く): 211040680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 42719, 85438, 170876, 213595, 341752, 427190, 854380, 1708760, 4143743, 8287486, 16574972, 20718715, 33149944, 41437430, 82874860, 165749720]

約数ペア:

[(1, 165749720), (2, 82874860), (4, 41437430), (5, 33149944), (8, 20718715), (10, 16574972), (20, 8287486), (40, 4143743), (97, 1708760), (194, 854380), (388, 427190), (485, 341752), (776, 213595), (970, 170876), (1940, 85438), (3880, 42719)]