869123780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{12491}}^1$

素因数の和:12585

約数の個数: 72

約数和(自身を含む): 2153221056

約数和(自身を除く): 1284097276

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 71, 98, 140, 142, 196, 245, 284, 355, 490, 497, 710, 980, 994, 1420, 1988, 2485, 3479, 4970, 6958, 9940, 12491, 13916, 17395, 24982, 34790, 49964, 62455, 69580, 87437, 124910, 174874, 249820, 349748, 437185, 612059, 874370, 886861, 1224118, 1748740, 1773722, 2448236, 3060295, 3547444, 4434305, 6120590, 6208027, 8868610, 12241180, 12416054, 17737220, 24832108, 31040135, 43456189, 62080270, 86912378, 124160540, 173824756, 217280945, 434561890, 869123780]

約数ペア:

[(1, 869123780), (2, 434561890), (4, 217280945), (5, 173824756), (7, 124160540), (10, 86912378), (14, 62080270), (20, 43456189), (28, 31040135), (35, 24832108), (49, 17737220), (70, 12416054), (71, 12241180), (98, 8868610), (140, 6208027), (142, 6120590), (196, 4434305), (245, 3547444), (284, 3060295), (355, 2448236), (490, 1773722), (497, 1748740), (710, 1224118), (980, 886861), (994, 874370), (1420, 612059), (1988, 437185), (2485, 349748), (3479, 249820), (4970, 174874), (6958, 124910), (9940, 87437), (12491, 69580), (13916, 62455), (17395, 49964), (24982, 34790)]