1555142390

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1249}}^1\times {\mathrm{1399}}^1$

素因数の和:2744

約数の個数: 32

約数和(自身を含む): 2835000000

約数和(自身を除く): 1279857610

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 1249, 1399, 2498, 2798, 6245, 6995, 12490, 13990, 111161, 124511, 222322, 249022, 555805, 622555, 1111610, 1245110, 1747351, 3494702, 8736755, 17473510, 155514239, 311028478, 777571195, 1555142390]

約数ペア:

[(1, 1555142390), (2, 777571195), (5, 311028478), (10, 155514239), (89, 17473510), (178, 8736755), (445, 3494702), (890, 1747351), (1249, 1245110), (1399, 1111610), (2498, 622555), (2798, 555805), (6245, 249022), (6995, 222322), (12490, 124511), (13990, 111161)]