81316872

素因数分解:

$2^3\times 3^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:242

約数の個数: 240

約数和(自身を含む): 286777260

約数和(自身を除く): 205460388

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 18, 21, 24, 26, 27, 28, 36, 39, 42, 49, 52, 54, 56, 63, 72, 78, 81, 84, 91, 98, 104, 108, 117, 126, 147, 156, 162, 168, 182, 189, 196, 197, 216, 234, 252, 273, 294, 312, 324, 351, 364, 378, 392, 394, 441, 468, 504, 546, 567, 588, 591, 637, 648, 702, 728, 756, 788, 819, 882, 936, 1053, 1092, 1134, 1176, 1182, 1274, 1323, 1379, 1404, 1512, 1576, 1638, 1764, 1773, 1911, 2106, 2184, 2268, 2364, 2457, 2548, 2561, 2646, 2758, 2808, 3276, 3528, 3546, 3822, 3969, 4137, 4212, 4536, 4728, 4914, 5096, 5122, 5292, 5319, 5516, 5733, 6552, 7092, 7371, 7644, 7683, 7938, 8274, 8424, 9653, 9828, 10244, 10584, 10638, 11032, 11466, 12411, 14184, 14742, 15288, 15366, 15876, 15957, 16548, 17199, 17927, 19306, 19656, 20488, 21276, 22932, 23049, 24822, 28959, 29484, 30732, 31752, 31914, 33096, 34398, 35854, 37233, 38612, 42552, 45864, 46098, 49644, 51597, 53781, 57918, 58968, 61464, 63828, 68796, 69147, 71708, 74466, 77224, 86877, 92196, 99288, 103194, 107562, 111699, 115836, 125489, 127656, 137592, 138294, 143416, 148932, 161343, 173754, 184392, 206388, 207441, 215124, 223398, 231672, 250978, 260631, 276588, 297864, 322686, 347508, 376467, 412776, 414882, 430248, 446796, 484029, 501956, 521262, 553176, 645372, 695016, 752934, 781893, 829764, 893592, 968058, 1003912, 1042524, 1129401, 1290744, 1452087, 1505868, 1563786, 1659528, 1936116, 2085048, 2258802, 2904174, 3011736, 3127572, 3388203, 3872232, 4517604, 5808348, 6255144, 6776406, 9035208, 10164609, 11616696, 13552812, 20329218, 27105624, 40658436, 81316872]

約数ペア:

[(1, 81316872), (2, 40658436), (3, 27105624), (4, 20329218), (6, 13552812), (7, 11616696), (8, 10164609), (9, 9035208), (12, 6776406), (13, 6255144), (14, 5808348), (18, 4517604), (21, 3872232), (24, 3388203), (26, 3127572), (27, 3011736), (28, 2904174), (36, 2258802), (39, 2085048), (42, 1936116), (49, 1659528), (52, 1563786), (54, 1505868), (56, 1452087), (63, 1290744), (72, 1129401), (78, 1042524), (81, 1003912), (84, 968058), (91, 893592), (98, 829764), (104, 781893), (108, 752934), (117, 695016), (126, 645372), (147, 553176), (156, 521262), (162, 501956), (168, 484029), (182, 446796), (189, 430248), (196, 414882), (197, 412776), (216, 376467), (234, 347508), (252, 322686), (273, 297864), (294, 276588), (312, 260631), (324, 250978), (351, 231672), (364, 223398), (378, 215124), (392, 207441), (394, 206388), (441, 184392), (468, 173754), (504, 161343), (546, 148932), (567, 143416), (588, 138294), (591, 137592), (637, 127656), (648, 125489), (702, 115836), (728, 111699), (756, 107562), (788, 103194), (819, 99288), (882, 92196), (936, 86877), (1053, 77224), (1092, 74466), (1134, 71708), (1176, 69147), (1182, 68796), (1274, 63828), (1323, 61464), (1379, 58968), (1404, 57918), (1512, 53781), (1576, 51597), (1638, 49644), (1764, 46098), (1773, 45864), (1911, 42552), (2106, 38612), (2184, 37233), (2268, 35854), (2364, 34398), (2457, 33096), (2548, 31914), (2561, 31752), (2646, 30732), (2758, 29484), (2808, 28959), (3276, 24822), (3528, 23049), (3546, 22932), (3822, 21276), (3969, 20488), (4137, 19656), (4212, 19306), (4536, 17927), (4728, 17199), (4914, 16548), (5096, 15957), (5122, 15876), (5292, 15366), (5319, 15288), (5516, 14742), (5733, 14184), (6552, 12411), (7092, 11466), (7371, 11032), (7644, 10638), (7683, 10584), (7938, 10244), (8274, 9828), (8424, 9653)]