278327740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{479}}^1\times {\mathrm{1709}}^1$

素因数の和:2214

約数の個数: 48

約数和(自身を含む): 620524800

約数和(自身を除く): 342197060

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 479, 958, 1709, 1916, 2395, 3418, 4790, 6836, 8143, 8545, 9580, 16286, 17090, 29053, 32572, 34180, 40715, 58106, 81430, 116212, 145265, 162860, 290530, 581060, 818611, 1637222, 3274444, 4093055, 8186110, 13916387, 16372220, 27832774, 55665548, 69581935, 139163870, 278327740]

約数ペア:

[(1, 278327740), (2, 139163870), (4, 69581935), (5, 55665548), (10, 27832774), (17, 16372220), (20, 13916387), (34, 8186110), (68, 4093055), (85, 3274444), (170, 1637222), (340, 818611), (479, 581060), (958, 290530), (1709, 162860), (1916, 145265), (2395, 116212), (3418, 81430), (4790, 58106), (6836, 40715), (8143, 34180), (8545, 32572), (9580, 29053), (16286, 17090)]