25624180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{31249}}^1$

素因数の和:31299

約数の個数: 24

約数和(自身を含む): 55125000

約数和(自身を除く): 29500820

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 31249, 62498, 124996, 156245, 312490, 624980, 1281209, 2562418, 5124836, 6406045, 12812090, 25624180]

約数ペア:

[(1, 25624180), (2, 12812090), (4, 6406045), (5, 5124836), (10, 2562418), (20, 1281209), (41, 624980), (82, 312490), (164, 156245), (205, 124996), (410, 62498), (820, 31249)]