85640240

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{3121}}^1$

素因数の和:3155

約数の個数: 80

約数和(自身を含む): 232276800

約数和(自身を除く): 146636560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1372, 1715, 1960, 2744, 3121, 3430, 3920, 5488, 6242, 6860, 12484, 13720, 15605, 21847, 24968, 27440, 31210, 43694, 49936, 62420, 87388, 109235, 124840, 152929, 174776, 218470, 249680, 305858, 349552, 436940, 611716, 764645, 873880, 1070503, 1223432, 1529290, 1747760, 2141006, 2446864, 3058580, 4282012, 5352515, 6117160, 8564024, 10705030, 12234320, 17128048, 21410060, 42820120, 85640240]

約数ペア:

[(1, 85640240), (2, 42820120), (4, 21410060), (5, 17128048), (7, 12234320), (8, 10705030), (10, 8564024), (14, 6117160), (16, 5352515), (20, 4282012), (28, 3058580), (35, 2446864), (40, 2141006), (49, 1747760), (56, 1529290), (70, 1223432), (80, 1070503), (98, 873880), (112, 764645), (140, 611716), (196, 436940), (245, 349552), (280, 305858), (343, 249680), (392, 218470), (490, 174776), (560, 152929), (686, 124840), (784, 109235), (980, 87388), (1372, 62420), (1715, 49936), (1960, 43694), (2744, 31210), (3121, 27440), (3430, 24968), (3920, 21847), (5488, 15605), (6242, 13720), (6860, 12484)]