264806780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:236

約数の個数: 144

約数和(自身を含む): 680470560

約数和(自身を除く): 415663780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 49, 67, 70, 74, 98, 109, 134, 140, 148, 185, 196, 218, 245, 259, 268, 335, 370, 436, 469, 490, 518, 545, 670, 740, 763, 938, 980, 1036, 1090, 1295, 1340, 1526, 1813, 1876, 2180, 2345, 2479, 2590, 3052, 3283, 3626, 3815, 4033, 4690, 4958, 5180, 5341, 6566, 7252, 7303, 7630, 8066, 9065, 9380, 9916, 10682, 12395, 13132, 14606, 15260, 16132, 16415, 17353, 18130, 20165, 21364, 24790, 26705, 28231, 29212, 32830, 34706, 36260, 36515, 40330, 49580, 51121, 53410, 56462, 65660, 69412, 73030, 80660, 86765, 102242, 106820, 112924, 121471, 141155, 146060, 173530, 197617, 204484, 242942, 255605, 270211, 282310, 347060, 357847, 395234, 485884, 511210, 540422, 564620, 607355, 715694, 790468, 988085, 1022420, 1080844, 1214710, 1351055, 1431388, 1789235, 1891477, 1976170, 2429420, 2702110, 3578470, 3782954, 3952340, 5404220, 7156940, 7565908, 9457385, 13240339, 18914770, 26480678, 37829540, 52961356, 66201695, 132403390, 264806780]

約数ペア:

[(1, 264806780), (2, 132403390), (4, 66201695), (5, 52961356), (7, 37829540), (10, 26480678), (14, 18914770), (20, 13240339), (28, 9457385), (35, 7565908), (37, 7156940), (49, 5404220), (67, 3952340), (70, 3782954), (74, 3578470), (98, 2702110), (109, 2429420), (134, 1976170), (140, 1891477), (148, 1789235), (185, 1431388), (196, 1351055), (218, 1214710), (245, 1080844), (259, 1022420), (268, 988085), (335, 790468), (370, 715694), (436, 607355), (469, 564620), (490, 540422), (518, 511210), (545, 485884), (670, 395234), (740, 357847), (763, 347060), (938, 282310), (980, 270211), (1036, 255605), (1090, 242942), (1295, 204484), (1340, 197617), (1526, 173530), (1813, 146060), (1876, 141155), (2180, 121471), (2345, 112924), (2479, 106820), (2590, 102242), (3052, 86765), (3283, 80660), (3626, 73030), (3815, 69412), (4033, 65660), (4690, 56462), (4958, 53410), (5180, 51121), (5341, 49580), (6566, 40330), (7252, 36515), (7303, 36260), (7630, 34706), (8066, 32830), (9065, 29212), (9380, 28231), (9916, 26705), (10682, 24790), (12395, 21364), (13132, 20165), (14606, 18130), (15260, 17353), (16132, 16415)]