201731440

素因数分解:

$2^4\times 5^1\times {\mathrm{2521643}}^1$

素因数の和:2521656

約数の個数: 20

約数和(自身を含む): 469025784

約数和(自身を除く): 267294344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2521643, 5043286, 10086572, 12608215, 20173144, 25216430, 40346288, 50432860, 100865720, 201731440]

約数ペア:

[(1, 201731440), (2, 100865720), (4, 50432860), (5, 40346288), (8, 25216430), (10, 20173144), (16, 12608215), (20, 10086572), (40, 5043286), (80, 2521643)]