280090713

素因数分解:

$3^1\times 7^3\times {\mathrm{293}}^1\times {\mathrm{929}}^1$

素因数の和:1246

約数の個数: 32

約数和(自身を含む): 437472000

約数和(自身を除く): 157381287

約数列:

[1, 3, 7, 21, 49, 147, 293, 343, 879, 929, 1029, 2051, 2787, 6153, 6503, 14357, 19509, 43071, 45521, 100499, 136563, 272197, 301497, 318647, 816591, 955941, 1905379, 5716137, 13337653, 40012959, 93363571, 280090713]

約数ペア:

[(1, 280090713), (3, 93363571), (7, 40012959), (21, 13337653), (49, 5716137), (147, 1905379), (293, 955941), (343, 816591), (879, 318647), (929, 301497), (1029, 272197), (2051, 136563), (2787, 100499), (6153, 45521), (6503, 43071), (14357, 19509)]