20123694780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{379}}^1\times {\mathrm{126421}}^1$

素因数の和:126819

約数の個数: 96

約数和(自身を含む): 64566243840

約数和(自身を除く): 44442549060

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 379, 420, 758, 1137, 1516, 1895, 2274, 2653, 3790, 4548, 5306, 5685, 7580, 7959, 10612, 11370, 13265, 15918, 22740, 26530, 31836, 39795, 53060, 79590, 126421, 159180, 252842, 379263, 505684, 632105, 758526, 884947, 1264210, 1517052, 1769894, 1896315, 2528420, 2654841, 3539788, 3792630, 4424735, 5309682, 7585260, 8849470, 10619364, 13274205, 17698940, 26548410, 47913559, 53096820, 95827118, 143740677, 191654236, 239567795, 287481354, 335394913, 479135590, 574962708, 670789826, 718703385, 958271180, 1006184739, 1341579652, 1437406770, 1676974565, 2012369478, 2874813540, 3353949130, 4024738956, 5030923695, 6707898260, 10061847390, 20123694780]

約数ペア:

[(1, 20123694780), (2, 10061847390), (3, 6707898260), (4, 5030923695), (5, 4024738956), (6, 3353949130), (7, 2874813540), (10, 2012369478), (12, 1676974565), (14, 1437406770), (15, 1341579652), (20, 1006184739), (21, 958271180), (28, 718703385), (30, 670789826), (35, 574962708), (42, 479135590), (60, 335394913), (70, 287481354), (84, 239567795), (105, 191654236), (140, 143740677), (210, 95827118), (379, 53096820), (420, 47913559), (758, 26548410), (1137, 17698940), (1516, 13274205), (1895, 10619364), (2274, 8849470), (2653, 7585260), (3790, 5309682), (4548, 4424735), (5306, 3792630), (5685, 3539788), (7580, 2654841), (7959, 2528420), (10612, 1896315), (11370, 1769894), (13265, 1517052), (15918, 1264210), (22740, 884947), (26530, 758526), (31836, 632105), (39795, 505684), (53060, 379263), (79590, 252842), (126421, 159180)]