20294225

素因数分解:

$5^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1303}}^1$

素因数の和:1409

約数の個数: 24

約数和(自身を含む): 29105280

約数和(自身を除く): 8811055

約数列:

[1, 5, 7, 25, 35, 89, 175, 445, 623, 1303, 2225, 3115, 6515, 9121, 15575, 32575, 45605, 115967, 228025, 579835, 811769, 2899175, 4058845, 20294225]

約数ペア:

[(1, 20294225), (5, 4058845), (7, 2899175), (25, 811769), (35, 579835), (89, 228025), (175, 115967), (445, 45605), (623, 32575), (1303, 15575), (2225, 9121), (3115, 6515)]