81004840

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{1117}}^1$

素因数の和:1179

約数の個数: 96

約数和(自身を含む): 217942920

約数和(自身を除く): 136938080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 49, 56, 70, 74, 98, 140, 148, 185, 196, 245, 259, 280, 296, 370, 392, 490, 518, 740, 980, 1036, 1117, 1295, 1480, 1813, 1960, 2072, 2234, 2590, 3626, 4468, 5180, 5585, 7252, 7819, 8936, 9065, 10360, 11170, 14504, 15638, 18130, 22340, 31276, 36260, 39095, 41329, 44680, 54733, 62552, 72520, 78190, 82658, 109466, 156380, 165316, 206645, 218932, 273665, 289303, 312760, 330632, 413290, 437864, 547330, 578606, 826580, 1094660, 1157212, 1446515, 1653160, 2025121, 2189320, 2314424, 2893030, 4050242, 5786060, 8100484, 10125605, 11572120, 16200968, 20251210, 40502420, 81004840]

約数ペア:

[(1, 81004840), (2, 40502420), (4, 20251210), (5, 16200968), (7, 11572120), (8, 10125605), (10, 8100484), (14, 5786060), (20, 4050242), (28, 2893030), (35, 2314424), (37, 2189320), (40, 2025121), (49, 1653160), (56, 1446515), (70, 1157212), (74, 1094660), (98, 826580), (140, 578606), (148, 547330), (185, 437864), (196, 413290), (245, 330632), (259, 312760), (280, 289303), (296, 273665), (370, 218932), (392, 206645), (490, 165316), (518, 156380), (740, 109466), (980, 82658), (1036, 78190), (1117, 72520), (1295, 62552), (1480, 54733), (1813, 44680), (1960, 41329), (2072, 39095), (2234, 36260), (2590, 31276), (3626, 22340), (4468, 18130), (5180, 15638), (5585, 14504), (7252, 11170), (7819, 10360), (8936, 9065)]