321014820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{764321}}^1$

素因数の和:764340

約数の個数: 48

約数和(自身を含む): 1027248768

約数和(自身を除く): 706233948

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 764321, 1528642, 2292963, 3057284, 3821605, 4585926, 5350247, 7643210, 9171852, 10700494, 11464815, 15286420, 16050741, 21400988, 22929630, 26751235, 32101482, 45859260, 53502470, 64202964, 80253705, 107004940, 160507410, 321014820]

約数ペア:

[(1, 321014820), (2, 160507410), (3, 107004940), (4, 80253705), (5, 64202964), (6, 53502470), (7, 45859260), (10, 32101482), (12, 26751235), (14, 22929630), (15, 21400988), (20, 16050741), (21, 15286420), (28, 11464815), (30, 10700494), (35, 9171852), (42, 7643210), (60, 5350247), (70, 4585926), (84, 3821605), (105, 3057284), (140, 2292963), (210, 1528642), (420, 764321)]