31895540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{401}}^1$

素因数の和:548

約数の個数: 48

約数和(自身を含む): 69494544

約数和(自身を除く): 37599004

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 97, 164, 194, 205, 388, 401, 410, 485, 802, 820, 970, 1604, 1940, 2005, 3977, 4010, 7954, 8020, 15908, 16441, 19885, 32882, 38897, 39770, 65764, 77794, 79540, 82205, 155588, 164410, 194485, 328820, 388970, 777940, 1594777, 3189554, 6379108, 7973885, 15947770, 31895540]

約数ペア:

[(1, 31895540), (2, 15947770), (4, 7973885), (5, 6379108), (10, 3189554), (20, 1594777), (41, 777940), (82, 388970), (97, 328820), (164, 194485), (194, 164410), (205, 155588), (388, 82205), (401, 79540), (410, 77794), (485, 65764), (802, 39770), (820, 38897), (970, 32882), (1604, 19885), (1940, 16441), (2005, 15908), (3977, 8020), (4010, 7954)]