20274285

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^3$

素因数の和:154

約数の個数: 32

約数和(自身を含む): 35164800

約数和(自身を除く): 14890515

約数列:

[1, 3, 5, 15, 17, 43, 51, 85, 129, 215, 255, 645, 731, 1849, 2193, 3655, 5547, 9245, 10965, 27735, 31433, 79507, 94299, 157165, 238521, 397535, 471495, 1192605, 1351619, 4054857, 6758095, 20274285]

約数ペア:

[(1, 20274285), (3, 6758095), (5, 4054857), (15, 1351619), (17, 1192605), (43, 471495), (51, 397535), (85, 238521), (129, 157165), (215, 94299), (255, 79507), (645, 31433), (731, 27735), (1849, 10965), (2193, 9245), (3655, 5547)]