17799740

素因数分解:

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

素因数の和:507

約数の個数: 72

約数和(自身を含む): 44643312

約数和(自身を除く): 26843572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 410, 443, 490, 574, 820, 886, 980, 1148, 1435, 1772, 2009, 2215, 2870, 3101, 4018, 4430, 5740, 6202, 8036, 8860, 10045, 12404, 15505, 18163, 20090, 21707, 31010, 36326, 40180, 43414, 62020, 72652, 86828, 90815, 108535, 127141, 181630, 217070, 254282, 363260, 434140, 508564, 635705, 889987, 1271410, 1779974, 2542820, 3559948, 4449935, 8899870, 17799740]

約数ペア:

[(1, 17799740), (2, 8899870), (4, 4449935), (5, 3559948), (7, 2542820), (10, 1779974), (14, 1271410), (20, 889987), (28, 635705), (35, 508564), (41, 434140), (49, 363260), (70, 254282), (82, 217070), (98, 181630), (140, 127141), (164, 108535), (196, 90815), (205, 86828), (245, 72652), (287, 62020), (410, 43414), (443, 40180), (490, 36326), (574, 31010), (820, 21707), (886, 20090), (980, 18163), (1148, 15505), (1435, 12404), (1772, 10045), (2009, 8860), (2215, 8036), (2870, 6202), (3101, 5740), (4018, 4430)]