15721537540

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{307}}^1\times {\mathrm{69203}}^1$

素因数の和:69556

約数の個数: 48

約数和(自身を含む): 34018471872

約数和(自身を除く): 18296934332

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 307, 370, 614, 740, 1228, 1535, 3070, 6140, 11359, 22718, 45436, 56795, 69203, 113590, 138406, 227180, 276812, 346015, 692030, 1384060, 2560511, 5121022, 10242044, 12802555, 21245321, 25605110, 42490642, 51210220, 84981284, 106226605, 212453210, 424906420, 786076877, 1572153754, 3144307508, 3930384385, 7860768770, 15721537540]

約数ペア:

[(1, 15721537540), (2, 7860768770), (4, 3930384385), (5, 3144307508), (10, 1572153754), (20, 786076877), (37, 424906420), (74, 212453210), (148, 106226605), (185, 84981284), (307, 51210220), (370, 42490642), (614, 25605110), (740, 21245321), (1228, 12802555), (1535, 10242044), (3070, 5121022), (6140, 2560511), (11359, 1384060), (22718, 692030), (45436, 346015), (56795, 276812), (69203, 227180), (113590, 138406)]