28439555

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:347

約数の個数: 32

約数和(自身を含む): 38320128

約数和(自身を除く): 9880573

約数列:

[1, 5, 17, 31, 43, 85, 155, 215, 251, 527, 731, 1255, 1333, 2635, 3655, 4267, 6665, 7781, 10793, 21335, 22661, 38905, 53965, 113305, 132277, 183481, 334583, 661385, 917405, 1672915, 5687911, 28439555]

約数ペア:

[(1, 28439555), (5, 5687911), (17, 1672915), (31, 917405), (43, 661385), (85, 334583), (155, 183481), (215, 132277), (251, 113305), (527, 53965), (731, 38905), (1255, 22661), (1333, 21335), (2635, 10793), (3655, 7781), (4267, 6665)]