2405900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{491}}^1$

素因数の和:519

約数の個数: 54

約数和(自身を含む): 6085548

約数和(自身を除く): 3679648

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 491, 700, 980, 982, 1225, 1964, 2450, 2455, 3437, 4900, 4910, 6874, 9820, 12275, 13748, 17185, 24059, 24550, 34370, 48118, 49100, 68740, 85925, 96236, 120295, 171850, 240590, 343700, 481180, 601475, 1202950, 2405900]

約数ペア:

[(1, 2405900), (2, 1202950), (4, 601475), (5, 481180), (7, 343700), (10, 240590), (14, 171850), (20, 120295), (25, 96236), (28, 85925), (35, 68740), (49, 49100), (50, 48118), (70, 34370), (98, 24550), (100, 24059), (140, 17185), (175, 13748), (196, 12275), (245, 9820), (350, 6874), (490, 4910), (491, 4900), (700, 3437), (980, 2455), (982, 2450), (1225, 1964)]