19912320740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13907}}^1\times {\mathrm{5507}}^1$

素因数の和:19436

約数の個数: 48

約数和(自身を含む): 45043895232

約数和(自身を除く): 25131574492

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 5507, 11014, 13907, 22028, 27535, 27814, 55070, 55628, 69535, 71591, 110140, 139070, 143182, 180791, 278140, 286364, 357955, 361582, 715910, 723164, 903955, 1431820, 1807910, 3615820, 76585849, 153171698, 306343396, 382929245, 765858490, 995616037, 1531716980, 1991232074, 3982464148, 4978080185, 9956160370, 19912320740]

約数ペア:

[(1, 19912320740), (2, 9956160370), (4, 4978080185), (5, 3982464148), (10, 1991232074), (13, 1531716980), (20, 995616037), (26, 765858490), (52, 382929245), (65, 306343396), (130, 153171698), (260, 76585849), (5507, 3615820), (11014, 1807910), (13907, 1431820), (22028, 903955), (27535, 723164), (27814, 715910), (55070, 361582), (55628, 357955), (69535, 286364), (71591, 278140), (110140, 180791), (139070, 143182)]