289060

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1$

素因数の和:255

約数の個数: 24

約数和(自身を含む): 617400

約数和(自身を除く): 328340

約数列:

[1, 2, 4, 5, 10, 20, 97, 149, 194, 298, 388, 485, 596, 745, 970, 1490, 1940, 2980, 14453, 28906, 57812, 72265, 144530, 289060]

約数ペア:

[(1, 289060), (2, 144530), (4, 72265), (5, 57812), (10, 28906), (20, 14453), (97, 2980), (149, 1940), (194, 1490), (298, 970), (388, 745), (485, 596)]