20105135

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{211}}^1$

素因数の和:311

約数の個数: 32

約数和(自身を含む): 27475200

約数和(自身を除く): 7370065

約数列:

[1, 5, 17, 19, 59, 85, 95, 211, 295, 323, 1003, 1055, 1121, 1615, 3587, 4009, 5015, 5605, 12449, 17935, 19057, 20045, 62245, 68153, 95285, 211633, 236531, 340765, 1058165, 1182655, 4021027, 20105135]

約数ペア:

[(1, 20105135), (5, 4021027), (17, 1182655), (19, 1058165), (59, 340765), (85, 236531), (95, 211633), (211, 95285), (295, 68153), (323, 62245), (1003, 20045), (1055, 19057), (1121, 17935), (1615, 12449), (3587, 5605), (4009, 5015)]