2542820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{443}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 6265728

約数和(自身を除く): 3722908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 443, 574, 820, 886, 1148, 1435, 1772, 2215, 2870, 3101, 4430, 5740, 6202, 8860, 12404, 15505, 18163, 31010, 36326, 62020, 72652, 90815, 127141, 181630, 254282, 363260, 508564, 635705, 1271410, 2542820]

約数ペア:

[(1, 2542820), (2, 1271410), (4, 635705), (5, 508564), (7, 363260), (10, 254282), (14, 181630), (20, 127141), (28, 90815), (35, 72652), (41, 62020), (70, 36326), (82, 31010), (140, 18163), (164, 15505), (205, 12404), (287, 8860), (410, 6202), (443, 5740), (574, 4430), (820, 3101), (886, 2870), (1148, 2215), (1435, 1772)]