77993720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{278549}}^1$

素因数の和:278567

約数の個数: 32

約数和(自身を含む): 200556000

約数和(自身を除く): 122562280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 278549, 557098, 1114196, 1392745, 1949843, 2228392, 2785490, 3899686, 5570980, 7799372, 9749215, 11141960, 15598744, 19498430, 38996860, 77993720]

約数ペア:

[(1, 77993720), (2, 38996860), (4, 19498430), (5, 15598744), (7, 11141960), (8, 9749215), (10, 7799372), (14, 5570980), (20, 3899686), (28, 2785490), (35, 2228392), (40, 1949843), (56, 1392745), (70, 1114196), (140, 557098), (280, 278549)]