20006875

素因数分解:

$5^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{269}}^1$

素因数の和:313

約数の個数: 40

約数和(自身を含む): 30365280

約数和(自身を除く): 10358405

約数列:

[1, 5, 7, 17, 25, 35, 85, 119, 125, 175, 269, 425, 595, 625, 875, 1345, 1883, 2125, 2975, 4375, 4573, 6725, 9415, 10625, 14875, 22865, 32011, 33625, 47075, 74375, 114325, 160055, 168125, 235375, 571625, 800275, 1176875, 2858125, 4001375, 20006875]

約数ペア:

[(1, 20006875), (5, 4001375), (7, 2858125), (17, 1176875), (25, 800275), (35, 571625), (85, 235375), (119, 168125), (125, 160055), (175, 114325), (269, 74375), (425, 47075), (595, 33625), (625, 32011), (875, 22865), (1345, 14875), (1883, 10625), (2125, 9415), (2975, 6725), (4375, 4573)]