28400

素因数分解:

$2^4\times 5^2\times {\mathrm{71}}^1$

素因数の和:89

約数の個数: 30

約数和(自身を含む): 69192

約数和(自身を除く): 40792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 71, 80, 100, 142, 200, 284, 355, 400, 568, 710, 1136, 1420, 1775, 2840, 3550, 5680, 7100, 14200, 28400]

約数ペア:

[(1, 28400), (2, 14200), (4, 7100), (5, 5680), (8, 3550), (10, 2840), (16, 1775), (20, 1420), (25, 1136), (40, 710), (50, 568), (71, 400), (80, 355), (100, 284), (142, 200)]