1279431940

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{659501}}^1$

素因数の和:659607

約数の個数: 24

約数和(自身を含む): 2714510232

約数和(自身を除く): 1435078292

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 659501, 1319002, 2638004, 3297505, 6595010, 13190020, 63971597, 127943194, 255886388, 319857985, 639715970, 1279431940]

約数ペア:

[(1, 1279431940), (2, 639715970), (4, 319857985), (5, 255886388), (10, 127943194), (20, 63971597), (97, 13190020), (194, 6595010), (388, 3297505), (485, 2638004), (970, 1319002), (1940, 659501)]