20120254990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1487}}^1\times {\mathrm{123007}}^1$

素因数の和:124512

約数の個数: 32

約数和(自身を含む): 39535755264

約数和(自身を除く): 19415500274

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 1487, 2974, 7435, 14870, 16357, 32714, 81785, 123007, 163570, 246014, 615035, 1230070, 1353077, 2706154, 6765385, 13530770, 182911409, 365822818, 914557045, 1829114090, 2012025499, 4024050998, 10060127495, 20120254990]

約数ペア:

[(1, 20120254990), (2, 10060127495), (5, 4024050998), (10, 2012025499), (11, 1829114090), (22, 914557045), (55, 365822818), (110, 182911409), (1487, 13530770), (2974, 6765385), (7435, 2706154), (14870, 1353077), (16357, 1230070), (32714, 615035), (81785, 246014), (123007, 163570)]