20492755910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{644629}}^1$

素因数の和:644681

約数の個数: 48

約数和(自身を含む): 42746704560

約数和(自身を除く): 22253948650

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 289, 374, 578, 935, 1445, 1870, 2890, 3179, 6358, 15895, 31790, 644629, 1289258, 3223145, 6446290, 7090919, 10958693, 14181838, 21917386, 35454595, 54793465, 70909190, 109586930, 120545623, 186297781, 241091246, 372595562, 602728115, 931488905, 1205456230, 1862977810, 2049275591, 4098551182, 10246377955, 20492755910]

約数ペア:

[(1, 20492755910), (2, 10246377955), (5, 4098551182), (10, 2049275591), (11, 1862977810), (17, 1205456230), (22, 931488905), (34, 602728115), (55, 372595562), (85, 241091246), (110, 186297781), (170, 120545623), (187, 109586930), (289, 70909190), (374, 54793465), (578, 35454595), (935, 21917386), (1445, 14181838), (1870, 10958693), (2890, 7090919), (3179, 6446290), (6358, 3223145), (15895, 1289258), (31790, 644629)]