65216980

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{33617}}^1$

素因数の和:33723

約数の個数: 24

約数和(自身を含む): 138371688

約数和(自身を除く): 73154708

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 33617, 67234, 134468, 168085, 336170, 672340, 3260849, 6521698, 13043396, 16304245, 32608490, 65216980]

約数ペア:

[(1, 65216980), (2, 32608490), (4, 16304245), (5, 13043396), (10, 6521698), (20, 3260849), (97, 672340), (194, 336170), (388, 168085), (485, 134468), (970, 67234), (1940, 33617)]