28248400

素因数分解:

$2^4\times 5^2\times {\mathrm{70621}}^1$

素因数の和:70639

約数の個数: 30

約数和(自身を含む): 67867742

約数和(自身を除く): 39619342

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 70621, 141242, 282484, 353105, 564968, 706210, 1129936, 1412420, 1765525, 2824840, 3531050, 5649680, 7062100, 14124200, 28248400]

約数ペア:

[(1, 28248400), (2, 14124200), (4, 7062100), (5, 5649680), (8, 3531050), (10, 2824840), (16, 1765525), (20, 1412420), (25, 1129936), (40, 706210), (50, 564968), (80, 353105), (100, 282484), (200, 141242), (400, 70621)]