81787664

素因数分解:

$2^4\times 7^4\times {\mathrm{2129}}^1$

素因数の和:2165

約数の個数: 50

約数和(自身を含む): 184950030

約数和(自身を除く): 103162366

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 343, 392, 686, 784, 1372, 2129, 2401, 2744, 4258, 4802, 5488, 8516, 9604, 14903, 17032, 19208, 29806, 34064, 38416, 59612, 104321, 119224, 208642, 238448, 417284, 730247, 834568, 1460494, 1669136, 2920988, 5111729, 5841976, 10223458, 11683952, 20446916, 40893832, 81787664]

約数ペア:

[(1, 81787664), (2, 40893832), (4, 20446916), (7, 11683952), (8, 10223458), (14, 5841976), (16, 5111729), (28, 2920988), (49, 1669136), (56, 1460494), (98, 834568), (112, 730247), (196, 417284), (343, 238448), (392, 208642), (686, 119224), (784, 104321), (1372, 59612), (2129, 38416), (2401, 34064), (2744, 29806), (4258, 19208), (4802, 17032), (5488, 14903), (8516, 9604)]