28228400

素因数分解:

$2^4\times 5^2\times {\mathrm{70571}}^1$

素因数の和:70589

約数の個数: 30

約数和(自身を含む): 67819692

約数和(自身を除く): 39591292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 70571, 141142, 282284, 352855, 564568, 705710, 1129136, 1411420, 1764275, 2822840, 3528550, 5645680, 7057100, 14114200, 28228400]

約数ペア:

[(1, 28228400), (2, 14114200), (4, 7057100), (5, 5645680), (8, 3528550), (10, 2822840), (16, 1764275), (20, 1411420), (25, 1129136), (40, 705710), (50, 564568), (80, 352855), (100, 282284), (200, 141142), (400, 70571)]