71851640

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{5237}}^1$

素因数の和:5269

約数の個数: 64

約数和(自身を含む): 188568000

約数和(自身を除く): 116716360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1960, 2744, 3430, 5237, 6860, 10474, 13720, 20948, 26185, 36659, 41896, 52370, 73318, 104740, 146636, 183295, 209480, 256613, 293272, 366590, 513226, 733180, 1026452, 1283065, 1466360, 1796291, 2052904, 2566130, 3592582, 5132260, 7185164, 8981455, 10264520, 14370328, 17962910, 35925820, 71851640]

約数ペア:

[(1, 71851640), (2, 35925820), (4, 17962910), (5, 14370328), (7, 10264520), (8, 8981455), (10, 7185164), (14, 5132260), (20, 3592582), (28, 2566130), (35, 2052904), (40, 1796291), (49, 1466360), (56, 1283065), (70, 1026452), (98, 733180), (140, 513226), (196, 366590), (245, 293272), (280, 256613), (343, 209480), (392, 183295), (490, 146636), (686, 104740), (980, 73318), (1372, 52370), (1715, 41896), (1960, 36659), (2744, 26185), (3430, 20948), (5237, 13720), (6860, 10474)]