1285180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4943}}^1$

素因数の和:4965

約数の個数: 24

約数和(自身を含む): 2907072

約数和(自身を除く): 1621892

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 4943, 9886, 19772, 24715, 49430, 64259, 98860, 128518, 257036, 321295, 642590, 1285180]

約数ペア:

[(1, 1285180), (2, 642590), (4, 321295), (5, 257036), (10, 128518), (13, 98860), (20, 64259), (26, 49430), (52, 24715), (65, 19772), (130, 9886), (260, 4943)]