199678760

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{74507}}^1$

素因数の和:74585

約数の個数: 32

約数和(自身を含む): 455988960

約数和(自身を除く): 256310200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 74507, 149014, 298028, 372535, 596056, 745070, 1490140, 2980280, 4991969, 9983938, 19967876, 24959845, 39935752, 49919690, 99839380, 199678760]

約数ペア:

[(1, 199678760), (2, 99839380), (4, 49919690), (5, 39935752), (8, 24959845), (10, 19967876), (20, 9983938), (40, 4991969), (67, 2980280), (134, 1490140), (268, 745070), (335, 596056), (536, 372535), (670, 298028), (1340, 149014), (2680, 74507)]