20488350

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{137}}^1\times {\mathrm{997}}^1$

素因数の和:1149

約数の個数: 48

約数和(自身を含む): 51233328

約数和(自身を除く): 30744978

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 137, 150, 274, 411, 685, 822, 997, 1370, 1994, 2055, 2991, 3425, 4110, 4985, 5982, 6850, 9970, 10275, 14955, 20550, 24925, 29910, 49850, 74775, 136589, 149550, 273178, 409767, 682945, 819534, 1365890, 2048835, 3414725, 4097670, 6829450, 10244175, 20488350]

約数ペア:

[(1, 20488350), (2, 10244175), (3, 6829450), (5, 4097670), (6, 3414725), (10, 2048835), (15, 1365890), (25, 819534), (30, 682945), (50, 409767), (75, 273178), (137, 149550), (150, 136589), (274, 74775), (411, 49850), (685, 29910), (822, 24925), (997, 20550), (1370, 14955), (1994, 10275), (2055, 9970), (2991, 6850), (3425, 5982), (4110, 4985)]