81977776

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{109013}}^1$

素因数の和:109068

約数の個数: 20

約数和(自身を含む): 162212832

約数和(自身を除く): 80235056

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 109013, 218026, 436052, 872104, 1744208, 5123611, 10247222, 20494444, 40988888, 81977776]

約数ペア:

[(1, 81977776), (2, 40988888), (4, 20494444), (8, 10247222), (16, 5123611), (47, 1744208), (94, 872104), (188, 436052), (376, 218026), (752, 109013)]