207972220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{479}}^1\times {\mathrm{1277}}^1$

素因数の和:1782

約数の個数: 48

約数和(自身を含む): 463760640

約数和(自身を除く): 255788420

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 479, 958, 1277, 1916, 2395, 2554, 4790, 5108, 6385, 8143, 9580, 12770, 16286, 21709, 25540, 32572, 40715, 43418, 81430, 86836, 108545, 162860, 217090, 434180, 611683, 1223366, 2446732, 3058415, 6116830, 10398611, 12233660, 20797222, 41594444, 51993055, 103986110, 207972220]

約数ペア:

[(1, 207972220), (2, 103986110), (4, 51993055), (5, 41594444), (10, 20797222), (17, 12233660), (20, 10398611), (34, 6116830), (68, 3058415), (85, 2446732), (170, 1223366), (340, 611683), (479, 434180), (958, 217090), (1277, 162860), (1916, 108545), (2395, 86836), (2554, 81430), (4790, 43418), (5108, 40715), (6385, 32572), (8143, 25540), (9580, 21709), (12770, 16286)]