20107120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{313}}^1$

素因数の和:410

約数の個数: 80

約数和(自身を含む): 51862752

約数和(自身を除く): 31755632

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 73, 80, 88, 110, 146, 176, 220, 292, 313, 365, 440, 584, 626, 730, 803, 880, 1168, 1252, 1460, 1565, 1606, 2504, 2920, 3130, 3212, 3443, 4015, 5008, 5840, 6260, 6424, 6886, 8030, 12520, 12848, 13772, 16060, 17215, 22849, 25040, 27544, 32120, 34430, 45698, 55088, 64240, 68860, 91396, 114245, 137720, 182792, 228490, 251339, 275440, 365584, 456980, 502678, 913960, 1005356, 1256695, 1827920, 2010712, 2513390, 4021424, 5026780, 10053560, 20107120]

約数ペア:

[(1, 20107120), (2, 10053560), (4, 5026780), (5, 4021424), (8, 2513390), (10, 2010712), (11, 1827920), (16, 1256695), (20, 1005356), (22, 913960), (40, 502678), (44, 456980), (55, 365584), (73, 275440), (80, 251339), (88, 228490), (110, 182792), (146, 137720), (176, 114245), (220, 91396), (292, 68860), (313, 64240), (365, 55088), (440, 45698), (584, 34430), (626, 32120), (730, 27544), (803, 25040), (880, 22849), (1168, 17215), (1252, 16060), (1460, 13772), (1565, 12848), (1606, 12520), (2504, 8030), (2920, 6886), (3130, 6424), (3212, 6260), (3443, 5840), (4015, 5008)]