269660

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:245

約数の個数: 24

約数和(自身を含む): 576240

約数和(自身を除く): 306580

約数列:

[1, 2, 4, 5, 10, 20, 97, 139, 194, 278, 388, 485, 556, 695, 970, 1390, 1940, 2780, 13483, 26966, 53932, 67415, 134830, 269660]

約数ペア:

[(1, 269660), (2, 134830), (4, 67415), (5, 53932), (10, 26966), (20, 13483), (97, 2780), (139, 1940), (194, 1390), (278, 970), (388, 695), (485, 556)]