1289238080

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{479}}^1\times {\mathrm{647}}^1$

素因数の和:1156

約数の個数: 112

約数和(自身を含む): 3318174720

約数和(自身を除く): 2028936640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 479, 520, 647, 832, 958, 1040, 1294, 1916, 2080, 2395, 2588, 3235, 3832, 4160, 4790, 5176, 6227, 6470, 7664, 8411, 9580, 10352, 12454, 12940, 15328, 16822, 19160, 20704, 24908, 25880, 30656, 31135, 33644, 38320, 41408, 42055, 49816, 51760, 62270, 67288, 76640, 84110, 99632, 103520, 124540, 134576, 153280, 168220, 199264, 207040, 249080, 269152, 309913, 336440, 398528, 498160, 538304, 619826, 672880, 996320, 1239652, 1345760, 1549565, 1992640, 2479304, 2691520, 3099130, 4028869, 4958608, 6198260, 8057738, 9917216, 12396520, 16115476, 19834432, 20144345, 24793040, 32230952, 40288690, 49586080, 64461904, 80577380, 99172160, 128923808, 161154760, 257847616, 322309520, 644619040, 1289238080]

約数ペア:

[(1, 1289238080), (2, 644619040), (4, 322309520), (5, 257847616), (8, 161154760), (10, 128923808), (13, 99172160), (16, 80577380), (20, 64461904), (26, 49586080), (32, 40288690), (40, 32230952), (52, 24793040), (64, 20144345), (65, 19834432), (80, 16115476), (104, 12396520), (130, 9917216), (160, 8057738), (208, 6198260), (260, 4958608), (320, 4028869), (416, 3099130), (479, 2691520), (520, 2479304), (647, 1992640), (832, 1549565), (958, 1345760), (1040, 1239652), (1294, 996320), (1916, 672880), (2080, 619826), (2395, 538304), (2588, 498160), (3235, 398528), (3832, 336440), (4160, 309913), (4790, 269152), (5176, 249080), (6227, 207040), (6470, 199264), (7664, 168220), (8411, 153280), (9580, 134576), (10352, 124540), (12454, 103520), (12940, 99632), (15328, 84110), (16822, 76640), (19160, 67288), (20704, 62270), (24908, 51760), (25880, 49816), (30656, 42055), (31135, 41408), (33644, 38320)]