18071480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{277}}^1$

素因数の和:528

約数の個数: 64

約数和(自身を含む): 46837440

約数和(自身を除く): 28765960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 233, 277, 280, 466, 554, 932, 1108, 1165, 1385, 1631, 1864, 1939, 2216, 2330, 2770, 3262, 3878, 4660, 5540, 6524, 7756, 8155, 9320, 9695, 11080, 13048, 15512, 16310, 19390, 32620, 38780, 64541, 65240, 77560, 129082, 258164, 322705, 451787, 516328, 645410, 903574, 1290820, 1807148, 2258935, 2581640, 3614296, 4517870, 9035740, 18071480]

約数ペア:

[(1, 18071480), (2, 9035740), (4, 4517870), (5, 3614296), (7, 2581640), (8, 2258935), (10, 1807148), (14, 1290820), (20, 903574), (28, 645410), (35, 516328), (40, 451787), (56, 322705), (70, 258164), (140, 129082), (233, 77560), (277, 65240), (280, 64541), (466, 38780), (554, 32620), (932, 19390), (1108, 16310), (1165, 15512), (1385, 13048), (1631, 11080), (1864, 9695), (1939, 9320), (2216, 8155), (2330, 7756), (2770, 6524), (3262, 5540), (3878, 4660)]