891200

素因数分解:

$2^6\times 5^2\times {\mathrm{557}}^1$

素因数の和:579

約数の個数: 42

約数和(自身を含む): 2196846

約数和(自身を除く): 1305646

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 557, 800, 1114, 1600, 2228, 2785, 4456, 5570, 8912, 11140, 13925, 17824, 22280, 27850, 35648, 44560, 55700, 89120, 111400, 178240, 222800, 445600, 891200]

約数ペア:

[(1, 891200), (2, 445600), (4, 222800), (5, 178240), (8, 111400), (10, 89120), (16, 55700), (20, 44560), (25, 35648), (32, 27850), (40, 22280), (50, 17824), (64, 13925), (80, 11140), (100, 8912), (160, 5570), (200, 4456), (320, 2785), (400, 2228), (557, 1600), (800, 1114)]