16954420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{347}}^1\times {\mathrm{349}}^1$

素因数の和:712

約数の個数: 48

約数和(自身を含む): 40924800

約数和(自身を除く): 23970380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 347, 349, 694, 698, 1388, 1396, 1735, 1745, 2429, 2443, 3470, 3490, 4858, 4886, 6940, 6980, 9716, 9772, 12145, 12215, 24290, 24430, 48580, 48860, 121103, 242206, 484412, 605515, 847721, 1211030, 1695442, 2422060, 3390884, 4238605, 8477210, 16954420]

約数ペア:

[(1, 16954420), (2, 8477210), (4, 4238605), (5, 3390884), (7, 2422060), (10, 1695442), (14, 1211030), (20, 847721), (28, 605515), (35, 484412), (70, 242206), (140, 121103), (347, 48860), (349, 48580), (694, 24430), (698, 24290), (1388, 12215), (1396, 12145), (1735, 9772), (1745, 9716), (2429, 6980), (2443, 6940), (3470, 4886), (3490, 4858)]