287809928

素因数分解:

$2^3\times 7^3\times {\mathrm{53}}^1\times {\mathrm{1979}}^1$

素因数の和:2059

約数の個数: 64

約数和(自身を含む): 641520000

約数和(自身を除く): 353710072

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 53, 56, 98, 106, 196, 212, 343, 371, 392, 424, 686, 742, 1372, 1484, 1979, 2597, 2744, 2968, 3958, 5194, 7916, 10388, 13853, 15832, 18179, 20776, 27706, 36358, 55412, 72716, 96971, 104887, 110824, 145432, 193942, 209774, 387884, 419548, 678797, 734209, 775768, 839096, 1357594, 1468418, 2715188, 2936836, 5139463, 5430376, 5873672, 10278926, 20557852, 35976241, 41115704, 71952482, 143904964, 287809928]

約数ペア:

[(1, 287809928), (2, 143904964), (4, 71952482), (7, 41115704), (8, 35976241), (14, 20557852), (28, 10278926), (49, 5873672), (53, 5430376), (56, 5139463), (98, 2936836), (106, 2715188), (196, 1468418), (212, 1357594), (343, 839096), (371, 775768), (392, 734209), (424, 678797), (686, 419548), (742, 387884), (1372, 209774), (1484, 193942), (1979, 145432), (2597, 110824), (2744, 104887), (2968, 96971), (3958, 72716), (5194, 55412), (7916, 36358), (10388, 27706), (13853, 20776), (15832, 18179)]