18468707920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{877}}^1\times {\mathrm{20249}}^1$

素因数の和:21152

約数の個数: 80

約数和(自身を含む): 46297818000

約数和(自身を除く): 27829110080

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 877, 1040, 1754, 3508, 4385, 7016, 8770, 11401, 14032, 17540, 20249, 22802, 35080, 40498, 45604, 57005, 70160, 80996, 91208, 101245, 114010, 161992, 182416, 202490, 228020, 263237, 323984, 404980, 456040, 526474, 809960, 912080, 1052948, 1316185, 1619920, 2105896, 2632370, 4211792, 5264740, 10529480, 17758373, 21058960, 35516746, 71033492, 88791865, 142066984, 177583730, 230858849, 284133968, 355167460, 461717698, 710334920, 923435396, 1154294245, 1420669840, 1846870792, 2308588490, 3693741584, 4617176980, 9234353960, 18468707920]

約数ペア:

[(1, 18468707920), (2, 9234353960), (4, 4617176980), (5, 3693741584), (8, 2308588490), (10, 1846870792), (13, 1420669840), (16, 1154294245), (20, 923435396), (26, 710334920), (40, 461717698), (52, 355167460), (65, 284133968), (80, 230858849), (104, 177583730), (130, 142066984), (208, 88791865), (260, 71033492), (520, 35516746), (877, 21058960), (1040, 17758373), (1754, 10529480), (3508, 5264740), (4385, 4211792), (7016, 2632370), (8770, 2105896), (11401, 1619920), (14032, 1316185), (17540, 1052948), (20249, 912080), (22802, 809960), (35080, 526474), (40498, 456040), (45604, 404980), (57005, 323984), (70160, 263237), (80996, 228020), (91208, 202490), (101245, 182416), (114010, 161992)]