81239904

素因数分解:

$2^5\times 3^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:253

約数の個数: 144

約数和(自身を含む): 244127520

約数和(自身を除く): 162887616

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 29, 32, 36, 48, 58, 71, 72, 87, 96, 116, 137, 142, 144, 174, 213, 232, 261, 274, 284, 288, 348, 411, 426, 464, 522, 548, 568, 639, 696, 822, 852, 928, 1044, 1096, 1136, 1233, 1278, 1392, 1644, 1704, 2059, 2088, 2192, 2272, 2466, 2556, 2784, 3288, 3408, 3973, 4118, 4176, 4384, 4932, 5112, 6177, 6576, 6816, 7946, 8236, 8352, 9727, 9864, 10224, 11919, 12354, 13152, 15892, 16472, 18531, 19454, 19728, 20448, 23838, 24708, 29181, 31784, 32944, 35757, 37062, 38908, 39456, 47676, 49416, 58362, 63568, 65888, 71514, 74124, 77816, 87543, 95352, 98832, 116724, 127136, 143028, 148248, 155632, 175086, 190704, 197664, 233448, 282083, 286056, 296496, 311264, 350172, 381408, 466896, 564166, 572112, 592992, 700344, 846249, 933792, 1128332, 1144224, 1400688, 1692498, 2256664, 2538747, 2801376, 3384996, 4513328, 5077494, 6769992, 9026656, 10154988, 13539984, 20309976, 27079968, 40619952, 81239904]

約数ペア:

[(1, 81239904), (2, 40619952), (3, 27079968), (4, 20309976), (6, 13539984), (8, 10154988), (9, 9026656), (12, 6769992), (16, 5077494), (18, 4513328), (24, 3384996), (29, 2801376), (32, 2538747), (36, 2256664), (48, 1692498), (58, 1400688), (71, 1144224), (72, 1128332), (87, 933792), (96, 846249), (116, 700344), (137, 592992), (142, 572112), (144, 564166), (174, 466896), (213, 381408), (232, 350172), (261, 311264), (274, 296496), (284, 286056), (288, 282083), (348, 233448), (411, 197664), (426, 190704), (464, 175086), (522, 155632), (548, 148248), (568, 143028), (639, 127136), (696, 116724), (822, 98832), (852, 95352), (928, 87543), (1044, 77816), (1096, 74124), (1136, 71514), (1233, 65888), (1278, 63568), (1392, 58362), (1644, 49416), (1704, 47676), (2059, 39456), (2088, 38908), (2192, 37062), (2272, 35757), (2466, 32944), (2556, 31784), (2784, 29181), (3288, 24708), (3408, 23838), (3973, 20448), (4118, 19728), (4176, 19454), (4384, 18531), (4932, 16472), (5112, 15892), (6177, 13152), (6576, 12354), (6816, 11919), (7946, 10224), (8236, 9864), (8352, 9727)]