81428776

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:179

約数の個数: 128

約数和(自身を含む): 195955200

約数和(自身を除く): 114526424

約数列:

[1, 2, 4, 8, 11, 13, 17, 22, 26, 34, 44, 52, 53, 68, 79, 88, 104, 106, 136, 143, 158, 187, 212, 221, 286, 316, 374, 424, 442, 572, 583, 632, 689, 748, 869, 884, 901, 1027, 1144, 1166, 1343, 1378, 1496, 1738, 1768, 1802, 2054, 2332, 2431, 2686, 2756, 3476, 3604, 4108, 4187, 4664, 4862, 5372, 5512, 6952, 7208, 7579, 8216, 8374, 9724, 9911, 10744, 11297, 11713, 14773, 15158, 16748, 17459, 19448, 19822, 22594, 23426, 29546, 30316, 33496, 34918, 39644, 45188, 46057, 46852, 54431, 59092, 60632, 69836, 71179, 79288, 90376, 92114, 93704, 108862, 118184, 128843, 139672, 142358, 184228, 192049, 217724, 257686, 284716, 368456, 384098, 435448, 515372, 569432, 598741, 768196, 782969, 925327, 1030744, 1197482, 1536392, 1565938, 1850654, 2394964, 3131876, 3701308, 4789928, 6263752, 7402616, 10178597, 20357194, 40714388, 81428776]

約数ペア:

[(1, 81428776), (2, 40714388), (4, 20357194), (8, 10178597), (11, 7402616), (13, 6263752), (17, 4789928), (22, 3701308), (26, 3131876), (34, 2394964), (44, 1850654), (52, 1565938), (53, 1536392), (68, 1197482), (79, 1030744), (88, 925327), (104, 782969), (106, 768196), (136, 598741), (143, 569432), (158, 515372), (187, 435448), (212, 384098), (221, 368456), (286, 284716), (316, 257686), (374, 217724), (424, 192049), (442, 184228), (572, 142358), (583, 139672), (632, 128843), (689, 118184), (748, 108862), (869, 93704), (884, 92114), (901, 90376), (1027, 79288), (1144, 71179), (1166, 69836), (1343, 60632), (1378, 59092), (1496, 54431), (1738, 46852), (1768, 46057), (1802, 45188), (2054, 39644), (2332, 34918), (2431, 33496), (2686, 30316), (2756, 29546), (3476, 23426), (3604, 22594), (4108, 19822), (4187, 19448), (4664, 17459), (4862, 16748), (5372, 15158), (5512, 14773), (6952, 11713), (7208, 11297), (7579, 10744), (8216, 9911), (8374, 9724)]