20562290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1871}}^1$

素因数の和:2042

約数の個数: 32

約数和(自身を含む): 42591744

約数和(自身を除く): 22029454

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 157, 314, 785, 1099, 1570, 1871, 2198, 3742, 5495, 9355, 10990, 13097, 18710, 26194, 65485, 130970, 293747, 587494, 1468735, 2056229, 2937470, 4112458, 10281145, 20562290]

約数ペア:

[(1, 20562290), (2, 10281145), (5, 4112458), (7, 2937470), (10, 2056229), (14, 1468735), (35, 587494), (70, 293747), (157, 130970), (314, 65485), (785, 26194), (1099, 18710), (1570, 13097), (1871, 10990), (2198, 9355), (3742, 5495)]