1978400

素因数分解:

$2^5\times 5^2\times {\mathrm{2473}}^1$

素因数の和:2493

約数の個数: 36

約数和(自身を含む): 4831722

約数和(自身を除く): 2853322

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 2473, 4946, 9892, 12365, 19784, 24730, 39568, 49460, 61825, 79136, 98920, 123650, 197840, 247300, 395680, 494600, 989200, 1978400]

約数ペア:

[(1, 1978400), (2, 989200), (4, 494600), (5, 395680), (8, 247300), (10, 197840), (16, 123650), (20, 98920), (25, 79136), (32, 61825), (40, 49460), (50, 39568), (80, 24730), (100, 19784), (160, 12365), (200, 9892), (400, 4946), (800, 2473)]