74890280

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{4813}}^1$

素因数の和:5213

約数の個数: 32

約数和(自身を含む): 168971400

約数和(自身を除く): 94081120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3890, 4813, 7780, 9626, 15560, 19252, 24065, 38504, 48130, 96260, 192520, 1872257, 3744514, 7489028, 9361285, 14978056, 18722570, 37445140, 74890280]

約数ペア:

[(1, 74890280), (2, 37445140), (4, 18722570), (5, 14978056), (8, 9361285), (10, 7489028), (20, 3744514), (40, 1872257), (389, 192520), (778, 96260), (1556, 48130), (1945, 38504), (3112, 24065), (3890, 19252), (4813, 15560), (7780, 9626)]