256854180513

素因数分解:

$3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{257}}^1\times {\mathrm{315179}}^1$

素因数の和:315597

約数の個数: 32

約数和(自身を含む): 395523164160

約数和(自身を除く): 138668983647

約数列:

[1, 3, 7, 21, 151, 257, 453, 771, 1057, 1799, 3171, 5397, 38807, 116421, 271649, 315179, 814947, 945537, 2206253, 6618759, 47592029, 81001003, 142776087, 243003009, 333144203, 567007021, 999432609, 1701021063, 12231151453, 36693454359, 85618060171, 256854180513]

約数ペア:

[(1, 256854180513), (3, 85618060171), (7, 36693454359), (21, 12231151453), (151, 1701021063), (257, 999432609), (453, 567007021), (771, 333144203), (1057, 243003009), (1799, 142776087), (3171, 81001003), (5397, 47592029), (38807, 6618759), (116421, 2206253), (271649, 945537), (315179, 814947)]