20101340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2143}}^1$

素因数の和:2226

約数の個数: 48

約数和(自身を含む): 48986112

約数和(自身を除く): 28884772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 134, 140, 268, 335, 469, 670, 938, 1340, 1876, 2143, 2345, 4286, 4690, 8572, 9380, 10715, 15001, 21430, 30002, 42860, 60004, 75005, 143581, 150010, 287162, 300020, 574324, 717905, 1005067, 1435810, 2010134, 2871620, 4020268, 5025335, 10050670, 20101340]

約数ペア:

[(1, 20101340), (2, 10050670), (4, 5025335), (5, 4020268), (7, 2871620), (10, 2010134), (14, 1435810), (20, 1005067), (28, 717905), (35, 574324), (67, 300020), (70, 287162), (134, 150010), (140, 143581), (268, 75005), (335, 60004), (469, 42860), (670, 30002), (938, 21430), (1340, 15001), (1876, 10715), (2143, 9380), (2345, 8572), (4286, 4690)]