19428400

素因数分解:

$2^4\times 5^2\times {\mathrm{48571}}^1$

素因数の和:48589

約数の個数: 30

約数和(自身を含む): 46677692

約数和(自身を除く): 27249292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 48571, 97142, 194284, 242855, 388568, 485710, 777136, 971420, 1214275, 1942840, 2428550, 3885680, 4857100, 9714200, 19428400]

約数ペア:

[(1, 19428400), (2, 9714200), (4, 4857100), (5, 3885680), (8, 2428550), (10, 1942840), (16, 1214275), (20, 971420), (25, 777136), (40, 485710), (50, 388568), (80, 242855), (100, 194284), (200, 97142), (400, 48571)]