164780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1$

素因数の和:134

約数の個数: 48

約数和(自身を含む): 435456

約数和(自身を除く): 270676

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 107, 110, 140, 154, 214, 220, 308, 385, 428, 535, 749, 770, 1070, 1177, 1498, 1540, 2140, 2354, 2996, 3745, 4708, 5885, 7490, 8239, 11770, 14980, 16478, 23540, 32956, 41195, 82390, 164780]

約数ペア:

[(1, 164780), (2, 82390), (4, 41195), (5, 32956), (7, 23540), (10, 16478), (11, 14980), (14, 11770), (20, 8239), (22, 7490), (28, 5885), (35, 4708), (44, 3745), (55, 2996), (70, 2354), (77, 2140), (107, 1540), (110, 1498), (140, 1177), (154, 1070), (214, 770), (220, 749), (308, 535), (385, 428)]