128820160

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{439}}^1$

素因数の和:594

約数の個数: 112

約数和(自身を含む): 354055680

約数和(自身を除く): 225235520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 131, 140, 160, 224, 262, 280, 320, 439, 448, 524, 560, 655, 878, 917, 1048, 1120, 1310, 1756, 1834, 2096, 2195, 2240, 2620, 3073, 3512, 3668, 4192, 4390, 4585, 5240, 6146, 7024, 7336, 8384, 8780, 9170, 10480, 12292, 14048, 14672, 15365, 17560, 18340, 20960, 24584, 28096, 29344, 30730, 35120, 36680, 41920, 49168, 57509, 58688, 61460, 70240, 73360, 98336, 115018, 122920, 140480, 146720, 196672, 230036, 245840, 287545, 293440, 402563, 460072, 491680, 575090, 805126, 920144, 983360, 1150180, 1610252, 1840288, 2012815, 2300360, 3220504, 3680576, 4025630, 4600720, 6441008, 8051260, 9201440, 12882016, 16102520, 18402880, 25764032, 32205040, 64410080, 128820160]

約数ペア:

[(1, 128820160), (2, 64410080), (4, 32205040), (5, 25764032), (7, 18402880), (8, 16102520), (10, 12882016), (14, 9201440), (16, 8051260), (20, 6441008), (28, 4600720), (32, 4025630), (35, 3680576), (40, 3220504), (56, 2300360), (64, 2012815), (70, 1840288), (80, 1610252), (112, 1150180), (131, 983360), (140, 920144), (160, 805126), (224, 575090), (262, 491680), (280, 460072), (320, 402563), (439, 293440), (448, 287545), (524, 245840), (560, 230036), (655, 196672), (878, 146720), (917, 140480), (1048, 122920), (1120, 115018), (1310, 98336), (1756, 73360), (1834, 70240), (2096, 61460), (2195, 58688), (2240, 57509), (2620, 49168), (3073, 41920), (3512, 36680), (3668, 35120), (4192, 30730), (4390, 29344), (4585, 28096), (5240, 24584), (6146, 20960), (7024, 18340), (7336, 17560), (8384, 15365), (8780, 14672), (9170, 14048), (10480, 12292)]