79838080

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1$

素因数の和:348

約数の個数: 128

約数和(自身を含む): 222082560

約数和(自身を除く): 142244480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 71, 80, 112, 128, 140, 142, 160, 224, 251, 280, 284, 320, 355, 448, 497, 502, 560, 568, 640, 710, 896, 994, 1004, 1120, 1136, 1255, 1420, 1757, 1988, 2008, 2240, 2272, 2485, 2510, 2840, 3514, 3976, 4016, 4480, 4544, 4970, 5020, 5680, 7028, 7952, 8032, 8785, 9088, 9940, 10040, 11360, 14056, 15904, 16064, 17570, 17821, 19880, 20080, 22720, 28112, 31808, 32128, 35140, 35642, 39760, 40160, 45440, 56224, 63616, 70280, 71284, 79520, 80320, 89105, 112448, 124747, 140560, 142568, 159040, 160640, 178210, 224896, 249494, 281120, 285136, 318080, 356420, 498988, 562240, 570272, 623735, 712840, 997976, 1124480, 1140544, 1247470, 1425680, 1995952, 2281088, 2494940, 2851360, 3991904, 4989880, 5702720, 7983808, 9979760, 11405440, 15967616, 19959520, 39919040, 79838080]

約数ペア:

[(1, 79838080), (2, 39919040), (4, 19959520), (5, 15967616), (7, 11405440), (8, 9979760), (10, 7983808), (14, 5702720), (16, 4989880), (20, 3991904), (28, 2851360), (32, 2494940), (35, 2281088), (40, 1995952), (56, 1425680), (64, 1247470), (70, 1140544), (71, 1124480), (80, 997976), (112, 712840), (128, 623735), (140, 570272), (142, 562240), (160, 498988), (224, 356420), (251, 318080), (280, 285136), (284, 281120), (320, 249494), (355, 224896), (448, 178210), (497, 160640), (502, 159040), (560, 142568), (568, 140560), (640, 124747), (710, 112448), (896, 89105), (994, 80320), (1004, 79520), (1120, 71284), (1136, 70280), (1255, 63616), (1420, 56224), (1757, 45440), (1988, 40160), (2008, 39760), (2240, 35642), (2272, 35140), (2485, 32128), (2510, 31808), (2840, 28112), (3514, 22720), (3976, 20080), (4016, 19880), (4480, 17821), (4544, 17570), (4970, 16064), (5020, 15904), (5680, 14056), (7028, 11360), (7952, 10040), (8032, 9940), (8785, 9088)]