20501460

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{307}}^1$

素因数の和:382

約数の個数: 144

約数和(自身を含む): 72648576

約数和(自身を除く): 52147116

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 53, 60, 63, 70, 84, 90, 105, 106, 126, 140, 159, 180, 210, 212, 252, 265, 307, 315, 318, 371, 420, 477, 530, 614, 630, 636, 742, 795, 921, 954, 1060, 1113, 1228, 1260, 1484, 1535, 1590, 1842, 1855, 1908, 2149, 2226, 2385, 2763, 3070, 3180, 3339, 3684, 3710, 4298, 4452, 4605, 4770, 5526, 5565, 6140, 6447, 6678, 7420, 8596, 9210, 9540, 10745, 11052, 11130, 12894, 13356, 13815, 16271, 16695, 18420, 19341, 21490, 22260, 25788, 27630, 32235, 32542, 33390, 38682, 42980, 48813, 55260, 64470, 65084, 66780, 77364, 81355, 96705, 97626, 113897, 128940, 146439, 162710, 193410, 195252, 227794, 244065, 292878, 325420, 341691, 386820, 455588, 488130, 569485, 585756, 683382, 732195, 976260, 1025073, 1138970, 1366764, 1464390, 1708455, 2050146, 2277940, 2928780, 3416910, 4100292, 5125365, 6833820, 10250730, 20501460]

約数ペア:

[(1, 20501460), (2, 10250730), (3, 6833820), (4, 5125365), (5, 4100292), (6, 3416910), (7, 2928780), (9, 2277940), (10, 2050146), (12, 1708455), (14, 1464390), (15, 1366764), (18, 1138970), (20, 1025073), (21, 976260), (28, 732195), (30, 683382), (35, 585756), (36, 569485), (42, 488130), (45, 455588), (53, 386820), (60, 341691), (63, 325420), (70, 292878), (84, 244065), (90, 227794), (105, 195252), (106, 193410), (126, 162710), (140, 146439), (159, 128940), (180, 113897), (210, 97626), (212, 96705), (252, 81355), (265, 77364), (307, 66780), (315, 65084), (318, 64470), (371, 55260), (420, 48813), (477, 42980), (530, 38682), (614, 33390), (630, 32542), (636, 32235), (742, 27630), (795, 25788), (921, 22260), (954, 21490), (1060, 19341), (1113, 18420), (1228, 16695), (1260, 16271), (1484, 13815), (1535, 13356), (1590, 12894), (1842, 11130), (1855, 11052), (1908, 10745), (2149, 9540), (2226, 9210), (2385, 8596), (2763, 7420), (3070, 6678), (3180, 6447), (3339, 6140), (3684, 5565), (3710, 5526), (4298, 4770), (4452, 4605)]