25880540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{461}}^1$

素因数の和:878

約数の個数: 48

約数和(自身を含む): 62403264

約数和(自身を除く): 36522724

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 401, 461, 802, 922, 1604, 1844, 2005, 2305, 2807, 3227, 4010, 4610, 5614, 6454, 8020, 9220, 11228, 12908, 14035, 16135, 28070, 32270, 56140, 64540, 184861, 369722, 739444, 924305, 1294027, 1848610, 2588054, 3697220, 5176108, 6470135, 12940270, 25880540]

約数ペア:

[(1, 25880540), (2, 12940270), (4, 6470135), (5, 5176108), (7, 3697220), (10, 2588054), (14, 1848610), (20, 1294027), (28, 924305), (35, 739444), (70, 369722), (140, 184861), (401, 64540), (461, 56140), (802, 32270), (922, 28070), (1604, 16135), (1844, 14035), (2005, 12908), (2305, 11228), (2807, 9220), (3227, 8020), (4010, 6454), (4610, 5614)]