3921385

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:145

約数の個数: 32

約数和(自身を含む): 5499648

約数和(自身を除く): 1578263

約数列:

[1, 5, 13, 23, 43, 61, 65, 115, 215, 299, 305, 559, 793, 989, 1403, 1495, 2623, 2795, 3965, 4945, 7015, 12857, 13115, 18239, 34099, 60329, 64285, 91195, 170495, 301645, 784277, 3921385]

約数ペア:

[(1, 3921385), (5, 784277), (13, 301645), (23, 170495), (43, 91195), (61, 64285), (65, 60329), (115, 34099), (215, 18239), (299, 13115), (305, 12857), (559, 7015), (793, 4945), (989, 3965), (1403, 2795), (1495, 2623)]