20204590

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{269}}^1$

素因数の和:349

約数の個数: 64

約数和(自身を含む): 44323200

約数和(自身を除く): 24118610

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 37, 58, 70, 74, 145, 185, 203, 259, 269, 290, 370, 406, 518, 538, 1015, 1073, 1295, 1345, 1883, 2030, 2146, 2590, 2690, 3766, 5365, 7511, 7801, 9415, 9953, 10730, 15022, 15602, 18830, 19906, 37555, 39005, 49765, 54607, 69671, 75110, 78010, 99530, 109214, 139342, 273035, 288637, 348355, 546070, 577274, 696710, 1443185, 2020459, 2886370, 4040918, 10102295, 20204590]

約数ペア:

[(1, 20204590), (2, 10102295), (5, 4040918), (7, 2886370), (10, 2020459), (14, 1443185), (29, 696710), (35, 577274), (37, 546070), (58, 348355), (70, 288637), (74, 273035), (145, 139342), (185, 109214), (203, 99530), (259, 78010), (269, 75110), (290, 69671), (370, 54607), (406, 49765), (518, 39005), (538, 37555), (1015, 19906), (1073, 18830), (1295, 15602), (1345, 15022), (1883, 10730), (2030, 9953), (2146, 9415), (2590, 7801), (2690, 7511), (3766, 5365)]