79868080

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{7621}}^1$

素因数の和:7765

約数の個数: 40

約数和(自身を含む): 187135344

約数和(自身を除く): 107267264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 2096, 2620, 5240, 7621, 10480, 15242, 30484, 38105, 60968, 76210, 121936, 152420, 304840, 609680, 998351, 1996702, 3993404, 4991755, 7986808, 9983510, 15973616, 19967020, 39934040, 79868080]

約数ペア:

[(1, 79868080), (2, 39934040), (4, 19967020), (5, 15973616), (8, 9983510), (10, 7986808), (16, 4991755), (20, 3993404), (40, 1996702), (80, 998351), (131, 609680), (262, 304840), (524, 152420), (655, 121936), (1048, 76210), (1310, 60968), (2096, 38105), (2620, 30484), (5240, 15242), (7621, 10480)]