81139320

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{317}}^1$

素因数の和:419

約数の個数: 160

約数和(自身を含む): 277041600

約数和(自身を除く): 195902280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 79, 81, 90, 108, 120, 135, 158, 162, 180, 216, 237, 270, 316, 317, 324, 360, 395, 405, 474, 540, 632, 634, 648, 711, 790, 810, 948, 951, 1080, 1185, 1268, 1422, 1580, 1585, 1620, 1896, 1902, 2133, 2370, 2536, 2844, 2853, 3160, 3170, 3240, 3555, 3804, 4266, 4740, 4755, 5688, 5706, 6340, 6399, 7110, 7608, 8532, 8559, 9480, 9510, 10665, 11412, 12680, 12798, 14220, 14265, 17064, 17118, 19020, 21330, 22824, 25043, 25596, 25677, 28440, 28530, 31995, 34236, 38040, 42660, 42795, 50086, 51192, 51354, 57060, 63990, 68472, 75129, 85320, 85590, 100172, 102708, 114120, 125215, 127980, 128385, 150258, 171180, 200344, 205416, 225387, 250430, 255960, 256770, 300516, 342360, 375645, 450774, 500860, 513540, 601032, 676161, 751290, 901548, 1001720, 1027080, 1126935, 1352322, 1502580, 1803096, 2028483, 2253870, 2704644, 3005160, 3380805, 4056966, 4507740, 5409288, 6761610, 8113932, 9015480, 10142415, 13523220, 16227864, 20284830, 27046440, 40569660, 81139320]

約数ペア:

[(1, 81139320), (2, 40569660), (3, 27046440), (4, 20284830), (5, 16227864), (6, 13523220), (8, 10142415), (9, 9015480), (10, 8113932), (12, 6761610), (15, 5409288), (18, 4507740), (20, 4056966), (24, 3380805), (27, 3005160), (30, 2704644), (36, 2253870), (40, 2028483), (45, 1803096), (54, 1502580), (60, 1352322), (72, 1126935), (79, 1027080), (81, 1001720), (90, 901548), (108, 751290), (120, 676161), (135, 601032), (158, 513540), (162, 500860), (180, 450774), (216, 375645), (237, 342360), (270, 300516), (316, 256770), (317, 255960), (324, 250430), (360, 225387), (395, 205416), (405, 200344), (474, 171180), (540, 150258), (632, 128385), (634, 127980), (648, 125215), (711, 114120), (790, 102708), (810, 100172), (948, 85590), (951, 85320), (1080, 75129), (1185, 68472), (1268, 63990), (1422, 57060), (1580, 51354), (1585, 51192), (1620, 50086), (1896, 42795), (1902, 42660), (2133, 38040), (2370, 34236), (2536, 31995), (2844, 28530), (2853, 28440), (3160, 25677), (3170, 25596), (3240, 25043), (3555, 22824), (3804, 21330), (4266, 19020), (4740, 17118), (4755, 17064), (5688, 14265), (5706, 14220), (6340, 12798), (6399, 12680), (7110, 11412), (7608, 10665), (8532, 9510), (8559, 9480)]