28761725

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{401}}^1$

素因数の和:581

約数の個数: 24

約数和(自身を含む): 37884480

約数和(自身を除く): 9122755

約数列:

[1, 5, 19, 25, 95, 151, 401, 475, 755, 2005, 2869, 3775, 7619, 10025, 14345, 38095, 60551, 71725, 190475, 302755, 1150469, 1513775, 5752345, 28761725]

約数ペア:

[(1, 28761725), (5, 5752345), (19, 1513775), (25, 1150469), (95, 302755), (151, 190475), (401, 71725), (475, 60551), (755, 38095), (2005, 14345), (2869, 10025), (3775, 7619)]