77128440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{642737}}^1$

素因数の和:642751

約数の個数: 32

約数和(自身を含む): 231385680

約数和(自身を除く): 154257240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 642737, 1285474, 1928211, 2570948, 3213685, 3856422, 5141896, 6427370, 7712844, 9641055, 12854740, 15425688, 19282110, 25709480, 38564220, 77128440]

約数ペア:

[(1, 77128440), (2, 38564220), (3, 25709480), (4, 19282110), (5, 15425688), (6, 12854740), (8, 9641055), (10, 7712844), (12, 6427370), (15, 5141896), (20, 3856422), (24, 3213685), (30, 2570948), (40, 1928211), (60, 1285474), (120, 642737)]