285778940

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{195739}}^1$

素因数の和:195821

約数の個数: 24

約数和(自身を含む): 608359920

約数和(自身を除く): 322580980

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 195739, 391478, 782956, 978695, 1957390, 3914780, 14288947, 28577894, 57155788, 71444735, 142889470, 285778940]

約数ペア:

[(1, 285778940), (2, 142889470), (4, 71444735), (5, 57155788), (10, 28577894), (20, 14288947), (73, 3914780), (146, 1957390), (292, 978695), (365, 782956), (730, 391478), (1460, 195739)]