20187218992

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{151}}^1\times {\mathrm{311}}^1\times {\mathrm{401}}^1$

素因数の和:938

約数の個数: 80

約数和(自身を含む): 40187856384

約数和(自身を除く): 20000637392

約数列:

[1, 2, 4, 8, 16, 67, 134, 151, 268, 302, 311, 401, 536, 604, 622, 802, 1072, 1208, 1244, 1604, 2416, 2488, 3208, 4976, 6416, 10117, 20234, 20837, 26867, 40468, 41674, 46961, 53734, 60551, 80936, 83348, 93922, 107468, 121102, 124711, 161872, 166696, 187844, 214936, 242204, 249422, 333392, 375688, 429872, 484408, 498844, 751376, 968816, 997688, 1995376, 3146387, 4056917, 6292774, 8113834, 8355637, 12585548, 16227668, 16711274, 18831361, 25171096, 32455336, 33422548, 37662722, 50342192, 64910672, 66845096, 75325444, 133690192, 150650888, 301301776, 1261701187, 2523402374, 5046804748, 10093609496, 20187218992]

約数ペア:

[(1, 20187218992), (2, 10093609496), (4, 5046804748), (8, 2523402374), (16, 1261701187), (67, 301301776), (134, 150650888), (151, 133690192), (268, 75325444), (302, 66845096), (311, 64910672), (401, 50342192), (536, 37662722), (604, 33422548), (622, 32455336), (802, 25171096), (1072, 18831361), (1208, 16711274), (1244, 16227668), (1604, 12585548), (2416, 8355637), (2488, 8113834), (3208, 6292774), (4976, 4056917), (6416, 3146387), (10117, 1995376), (20234, 997688), (20837, 968816), (26867, 751376), (40468, 498844), (41674, 484408), (46961, 429872), (53734, 375688), (60551, 333392), (80936, 249422), (83348, 242204), (93922, 214936), (107468, 187844), (121102, 166696), (124711, 161872)]