820755

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:108

約数の個数: 48

約数和(自身を含む): 1624896

約数和(自身を除く): 804141

約数列:

[1, 3, 5, 9, 13, 15, 23, 39, 45, 61, 65, 69, 115, 117, 183, 195, 207, 299, 305, 345, 549, 585, 793, 897, 915, 1035, 1403, 1495, 2379, 2691, 2745, 3965, 4209, 4485, 7015, 7137, 11895, 12627, 13455, 18239, 21045, 35685, 54717, 63135, 91195, 164151, 273585, 820755]

約数ペア:

[(1, 820755), (3, 273585), (5, 164151), (9, 91195), (13, 63135), (15, 54717), (23, 35685), (39, 21045), (45, 18239), (61, 13455), (65, 12627), (69, 11895), (115, 7137), (117, 7015), (183, 4485), (195, 4209), (207, 3965), (299, 2745), (305, 2691), (345, 2379), (549, 1495), (585, 1403), (793, 1035), (897, 915)]