81910440

素因数分解:

$2^3\times 3^6\times 5^1\times {\mathrm{53}}^2$

素因数の和:135

約数の個数: 168

約数和(自身を含む): 281633310

約数和(自身を除く): 199722870

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 53, 54, 60, 72, 81, 90, 106, 108, 120, 135, 159, 162, 180, 212, 216, 243, 265, 270, 318, 324, 360, 405, 424, 477, 486, 530, 540, 636, 648, 729, 795, 810, 954, 972, 1060, 1080, 1215, 1272, 1431, 1458, 1590, 1620, 1908, 1944, 2120, 2385, 2430, 2809, 2862, 2916, 3180, 3240, 3645, 3816, 4293, 4770, 4860, 5618, 5724, 5832, 6360, 7155, 7290, 8427, 8586, 9540, 9720, 11236, 11448, 12879, 14045, 14310, 14580, 16854, 17172, 19080, 21465, 22472, 25281, 25758, 28090, 28620, 29160, 33708, 34344, 38637, 42135, 42930, 50562, 51516, 56180, 57240, 64395, 67416, 75843, 77274, 84270, 85860, 101124, 103032, 112360, 126405, 128790, 151686, 154548, 168540, 171720, 193185, 202248, 227529, 252810, 257580, 303372, 309096, 337080, 379215, 386370, 455058, 505620, 515160, 606744, 682587, 758430, 772740, 910116, 1011240, 1137645, 1365174, 1516860, 1545480, 1820232, 2047761, 2275290, 2730348, 3033720, 3412935, 4095522, 4550580, 5460696, 6825870, 8191044, 9101160, 10238805, 13651740, 16382088, 20477610, 27303480, 40955220, 81910440]

約数ペア:

[(1, 81910440), (2, 40955220), (3, 27303480), (4, 20477610), (5, 16382088), (6, 13651740), (8, 10238805), (9, 9101160), (10, 8191044), (12, 6825870), (15, 5460696), (18, 4550580), (20, 4095522), (24, 3412935), (27, 3033720), (30, 2730348), (36, 2275290), (40, 2047761), (45, 1820232), (53, 1545480), (54, 1516860), (60, 1365174), (72, 1137645), (81, 1011240), (90, 910116), (106, 772740), (108, 758430), (120, 682587), (135, 606744), (159, 515160), (162, 505620), (180, 455058), (212, 386370), (216, 379215), (243, 337080), (265, 309096), (270, 303372), (318, 257580), (324, 252810), (360, 227529), (405, 202248), (424, 193185), (477, 171720), (486, 168540), (530, 154548), (540, 151686), (636, 128790), (648, 126405), (729, 112360), (795, 103032), (810, 101124), (954, 85860), (972, 84270), (1060, 77274), (1080, 75843), (1215, 67416), (1272, 64395), (1431, 57240), (1458, 56180), (1590, 51516), (1620, 50562), (1908, 42930), (1944, 42135), (2120, 38637), (2385, 34344), (2430, 33708), (2809, 29160), (2862, 28620), (2916, 28090), (3180, 25758), (3240, 25281), (3645, 22472), (3816, 21465), (4293, 19080), (4770, 17172), (4860, 16854), (5618, 14580), (5724, 14310), (5832, 14045), (6360, 12879), (7155, 11448), (7290, 11236), (8427, 9720), (8586, 9540)]