25221265

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:289

約数の個数: 24

約数和(自身を含む): 32506920

約数和(自身を除く): 7285655

約数列:

[1, 5, 19, 89, 95, 157, 361, 445, 785, 1691, 1805, 2983, 8455, 13973, 14915, 32129, 56677, 69865, 160645, 265487, 283385, 1327435, 5044253, 25221265]

約数ペア:

[(1, 25221265), (5, 5044253), (19, 1327435), (89, 283385), (95, 265487), (157, 160645), (361, 69865), (445, 56677), (785, 32129), (1691, 14915), (1805, 13973), (2983, 8455)]