64687480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1$

素因数の和:341

約数の個数: 128

約数和(自身を含む): 175633920

約数和(自身を除く): 110946440

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 43, 44, 52, 55, 65, 86, 88, 104, 110, 130, 143, 172, 215, 220, 260, 263, 286, 344, 430, 440, 473, 520, 526, 559, 572, 715, 860, 946, 1052, 1118, 1144, 1315, 1430, 1720, 1892, 2104, 2236, 2365, 2630, 2795, 2860, 2893, 3419, 3784, 4472, 4730, 5260, 5590, 5720, 5786, 6149, 6838, 9460, 10520, 11180, 11309, 11572, 12298, 13676, 14465, 17095, 18920, 22360, 22618, 23144, 24596, 27352, 28930, 30745, 34190, 37609, 45236, 49192, 56545, 57860, 61490, 68380, 75218, 90472, 113090, 115720, 122980, 124399, 136760, 147017, 150436, 188045, 226180, 245960, 248798, 294034, 300872, 376090, 452360, 497596, 588068, 621995, 735085, 752180, 995192, 1176136, 1243990, 1470170, 1504360, 1617187, 2487980, 2940340, 3234374, 4975960, 5880680, 6468748, 8085935, 12937496, 16171870, 32343740, 64687480]

約数ペア:

[(1, 64687480), (2, 32343740), (4, 16171870), (5, 12937496), (8, 8085935), (10, 6468748), (11, 5880680), (13, 4975960), (20, 3234374), (22, 2940340), (26, 2487980), (40, 1617187), (43, 1504360), (44, 1470170), (52, 1243990), (55, 1176136), (65, 995192), (86, 752180), (88, 735085), (104, 621995), (110, 588068), (130, 497596), (143, 452360), (172, 376090), (215, 300872), (220, 294034), (260, 248798), (263, 245960), (286, 226180), (344, 188045), (430, 150436), (440, 147017), (473, 136760), (520, 124399), (526, 122980), (559, 115720), (572, 113090), (715, 90472), (860, 75218), (946, 68380), (1052, 61490), (1118, 57860), (1144, 56545), (1315, 49192), (1430, 45236), (1720, 37609), (1892, 34190), (2104, 30745), (2236, 28930), (2365, 27352), (2630, 24596), (2795, 23144), (2860, 22618), (2893, 22360), (3419, 18920), (3784, 17095), (4472, 14465), (4730, 13676), (5260, 12298), (5590, 11572), (5720, 11309), (5786, 11180), (6149, 10520), (6838, 9460)]