8448400

素因数分解:

$2^4\times 5^2\times {\mathrm{21121}}^1$

素因数の和:21139

約数の個数: 30

約数和(自身を含む): 20298242

約数和(自身を除く): 11849842

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 21121, 42242, 84484, 105605, 168968, 211210, 337936, 422420, 528025, 844840, 1056050, 1689680, 2112100, 4224200, 8448400]

約数ペア:

[(1, 8448400), (2, 4224200), (4, 2112100), (5, 1689680), (8, 1056050), (10, 844840), (16, 528025), (20, 422420), (25, 337936), (40, 211210), (50, 168968), (80, 105605), (100, 84484), (200, 42242), (400, 21121)]