81927720

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{10837}}^1$

素因数の和:10864

約数の個数: 128

約数和(自身を含む): 312134400

約数和(自身を除く): 230206680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 3780, 7560, 10837, 21674, 32511, 43348, 54185, 65022, 75859, 86696, 97533, 108370, 130044, 151718, 162555, 195066, 216740, 227577, 260088, 292599, 303436, 325110, 379295, 390132, 433480, 455154, 487665, 585198, 606872, 650220, 682731, 758590, 780264, 910308, 975330, 1137885, 1170396, 1300440, 1365462, 1462995, 1517180, 1820616, 1950660, 2048193, 2275770, 2340792, 2730924, 2925990, 3034360, 3413655, 3901320, 4096386, 4551540, 5461848, 5851980, 6827310, 8192772, 9103080, 10240965, 11703960, 13654620, 16385544, 20481930, 27309240, 40963860, 81927720]

約数ペア:

[(1, 81927720), (2, 40963860), (3, 27309240), (4, 20481930), (5, 16385544), (6, 13654620), (7, 11703960), (8, 10240965), (9, 9103080), (10, 8192772), (12, 6827310), (14, 5851980), (15, 5461848), (18, 4551540), (20, 4096386), (21, 3901320), (24, 3413655), (27, 3034360), (28, 2925990), (30, 2730924), (35, 2340792), (36, 2275770), (40, 2048193), (42, 1950660), (45, 1820616), (54, 1517180), (56, 1462995), (60, 1365462), (63, 1300440), (70, 1170396), (72, 1137885), (84, 975330), (90, 910308), (105, 780264), (108, 758590), (120, 682731), (126, 650220), (135, 606872), (140, 585198), (168, 487665), (180, 455154), (189, 433480), (210, 390132), (216, 379295), (252, 325110), (270, 303436), (280, 292599), (315, 260088), (360, 227577), (378, 216740), (420, 195066), (504, 162555), (540, 151718), (630, 130044), (756, 108370), (840, 97533), (945, 86696), (1080, 75859), (1260, 65022), (1512, 54185), (1890, 43348), (2520, 32511), (3780, 21674), (7560, 10837)]