1205540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:204

約数の個数: 48

約数和(自身を含む): 2956800

約数和(自身を除く): 1751260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 109, 140, 158, 218, 316, 395, 436, 545, 553, 763, 790, 1090, 1106, 1526, 1580, 2180, 2212, 2765, 3052, 3815, 5530, 7630, 8611, 11060, 15260, 17222, 34444, 43055, 60277, 86110, 120554, 172220, 241108, 301385, 602770, 1205540]

約数ペア:

[(1, 1205540), (2, 602770), (4, 301385), (5, 241108), (7, 172220), (10, 120554), (14, 86110), (20, 60277), (28, 43055), (35, 34444), (70, 17222), (79, 15260), (109, 11060), (140, 8611), (158, 7630), (218, 5530), (316, 3815), (395, 3052), (436, 2765), (545, 2212), (553, 2180), (763, 1580), (790, 1526), (1090, 1106)]