20798967910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{144307}}^1$

素因数の和:144421

約数の個数: 64

約数和(自身を含む): 44885560320

約数和(自身を除く): 24086592410

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 71, 142, 145, 203, 290, 355, 406, 497, 710, 994, 1015, 2030, 2059, 2485, 4118, 4970, 10295, 14413, 20590, 28826, 72065, 144130, 144307, 288614, 721535, 1010149, 1443070, 2020298, 4184903, 5050745, 8369806, 10101490, 10245797, 20491594, 20924515, 29294321, 41849030, 51228985, 58588642, 71720579, 102457970, 143441158, 146471605, 292943210, 297128113, 358602895, 594256226, 717205790, 1485640565, 2079896791, 2971281130, 4159793582, 10399483955, 20798967910]

約数ペア:

[(1, 20798967910), (2, 10399483955), (5, 4159793582), (7, 2971281130), (10, 2079896791), (14, 1485640565), (29, 717205790), (35, 594256226), (58, 358602895), (70, 297128113), (71, 292943210), (142, 146471605), (145, 143441158), (203, 102457970), (290, 71720579), (355, 58588642), (406, 51228985), (497, 41849030), (710, 29294321), (994, 20924515), (1015, 20491594), (2030, 10245797), (2059, 10101490), (2485, 8369806), (4118, 5050745), (4970, 4184903), (10295, 2020298), (14413, 1443070), (20590, 1010149), (28826, 721535), (72065, 288614), (144130, 144307)]