1320345

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:122

約数の個数: 48

約数和(自身を含む): 2572752

約数和(自身を除く): 1252407

約数列:

[1, 3, 5, 9, 13, 15, 37, 39, 45, 61, 65, 111, 117, 183, 185, 195, 305, 333, 481, 549, 555, 585, 793, 915, 1443, 1665, 2257, 2379, 2405, 2745, 3965, 4329, 6771, 7137, 7215, 11285, 11895, 20313, 21645, 29341, 33855, 35685, 88023, 101565, 146705, 264069, 440115, 1320345]

約数ペア:

[(1, 1320345), (3, 440115), (5, 264069), (9, 146705), (13, 101565), (15, 88023), (37, 35685), (39, 33855), (45, 29341), (61, 21645), (65, 20313), (111, 11895), (117, 11285), (183, 7215), (185, 7137), (195, 6771), (305, 4329), (333, 3965), (481, 2745), (549, 2405), (555, 2379), (585, 2257), (793, 1665), (915, 1443)]