777748820

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{337}}^1\times {\mathrm{449}}^1$

素因数の和:1052

約数の個数: 48

約数和(自身を含む): 1648155600

約数和(自身を除く): 870406780

約数列:

[1, 2, 4, 5, 10, 20, 257, 337, 449, 514, 674, 898, 1028, 1285, 1348, 1685, 1796, 2245, 2570, 3370, 4490, 5140, 6740, 8980, 86609, 115393, 151313, 173218, 230786, 302626, 346436, 433045, 461572, 576965, 605252, 756565, 866090, 1153930, 1513130, 1732180, 2307860, 3026260, 38887441, 77774882, 155549764, 194437205, 388874410, 777748820]

約数ペア:

[(1, 777748820), (2, 388874410), (4, 194437205), (5, 155549764), (10, 77774882), (20, 38887441), (257, 3026260), (337, 2307860), (449, 1732180), (514, 1513130), (674, 1153930), (898, 866090), (1028, 756565), (1285, 605252), (1348, 576965), (1685, 461572), (1796, 433045), (2245, 346436), (2570, 302626), (3370, 230786), (4490, 173218), (5140, 151313), (6740, 115393), (8980, 86609)]