28048400

素因数分解:

$2^4\times 5^2\times {\mathrm{70121}}^1$

素因数の和:70139

約数の個数: 30

約数和(自身を含む): 67387242

約数和(自身を除く): 39338842

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 70121, 140242, 280484, 350605, 560968, 701210, 1121936, 1402420, 1753025, 2804840, 3506050, 5609680, 7012100, 14024200, 28048400]

約数ペア:

[(1, 28048400), (2, 14024200), (4, 7012100), (5, 5609680), (8, 3506050), (10, 2804840), (16, 1753025), (20, 1402420), (25, 1121936), (40, 701210), (50, 560968), (80, 350605), (100, 280484), (200, 140242), (400, 70121)]