394405900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{80491}}^1$

素因数の和:80519

約数の個数: 54

約数和(自身を含む): 995605548

約数和(自身を除く): 601199648

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, 700, 980, 1225, 2450, 4900, 80491, 160982, 321964, 402455, 563437, 804910, 1126874, 1609820, 2012275, 2253748, 2817185, 3944059, 4024550, 5634370, 7888118, 8049100, 11268740, 14085925, 15776236, 19720295, 28171850, 39440590, 56343700, 78881180, 98601475, 197202950, 394405900]

約数ペア:

[(1, 394405900), (2, 197202950), (4, 98601475), (5, 78881180), (7, 56343700), (10, 39440590), (14, 28171850), (20, 19720295), (25, 15776236), (28, 14085925), (35, 11268740), (49, 8049100), (50, 7888118), (70, 5634370), (98, 4024550), (100, 3944059), (140, 2817185), (175, 2253748), (196, 2012275), (245, 1609820), (350, 1126874), (490, 804910), (700, 563437), (980, 402455), (1225, 321964), (2450, 160982), (4900, 80491)]