256214924

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{643}}^1$

素因数の和:787

約数の個数: 72

約数和(自身を含む): 555024960

約数和(自身を除く): 298810036

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 107, 133, 196, 214, 266, 428, 532, 643, 749, 931, 1286, 1498, 1862, 2033, 2572, 2996, 3724, 4066, 4501, 5243, 8132, 9002, 10486, 12217, 14231, 18004, 20972, 24434, 28462, 31507, 48868, 56924, 63014, 68801, 85519, 99617, 126028, 137602, 171038, 199234, 275204, 342076, 398468, 481607, 598633, 963214, 1197266, 1307219, 1926428, 2394532, 2614438, 3371249, 5228876, 6742498, 9150533, 13484996, 18301066, 36602132, 64053731, 128107462, 256214924]

約数ペア:

[(1, 256214924), (2, 128107462), (4, 64053731), (7, 36602132), (14, 18301066), (19, 13484996), (28, 9150533), (38, 6742498), (49, 5228876), (76, 3371249), (98, 2614438), (107, 2394532), (133, 1926428), (196, 1307219), (214, 1197266), (266, 963214), (428, 598633), (532, 481607), (643, 398468), (749, 342076), (931, 275204), (1286, 199234), (1498, 171038), (1862, 137602), (2033, 126028), (2572, 99617), (2996, 85519), (3724, 68801), (4066, 63014), (4501, 56924), (5243, 48868), (8132, 31507), (9002, 28462), (10486, 24434), (12217, 20972), (14231, 18004)]