31321080

素因数分解:

$2^3\times 3^4\times 5^1\times 7^1\times {\mathrm{1381}}^1$

素因数の和:1411

約数の個数: 160

約数和(自身を含む): 120399840

約数和(自身を除く): 89078760

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, 81, 84, 90, 105, 108, 120, 126, 135, 140, 162, 168, 180, 189, 210, 216, 252, 270, 280, 315, 324, 360, 378, 405, 420, 504, 540, 567, 630, 648, 756, 810, 840, 945, 1080, 1134, 1260, 1381, 1512, 1620, 1890, 2268, 2520, 2762, 2835, 3240, 3780, 4143, 4536, 5524, 5670, 6905, 7560, 8286, 9667, 11048, 11340, 12429, 13810, 16572, 19334, 20715, 22680, 24858, 27620, 29001, 33144, 37287, 38668, 41430, 48335, 49716, 55240, 58002, 62145, 74574, 77336, 82860, 87003, 96670, 99432, 111861, 116004, 124290, 145005, 149148, 165720, 174006, 186435, 193340, 223722, 232008, 248580, 261009, 290010, 298296, 348012, 372870, 386680, 435015, 447444, 497160, 522018, 559305, 580020, 696024, 745740, 783027, 870030, 894888, 1044036, 1118610, 1160040, 1305045, 1491480, 1566054, 1740060, 2088072, 2237220, 2610090, 3132108, 3480120, 3915135, 4474440, 5220180, 6264216, 7830270, 10440360, 15660540, 31321080]

約数ペア:

[(1, 31321080), (2, 15660540), (3, 10440360), (4, 7830270), (5, 6264216), (6, 5220180), (7, 4474440), (8, 3915135), (9, 3480120), (10, 3132108), (12, 2610090), (14, 2237220), (15, 2088072), (18, 1740060), (20, 1566054), (21, 1491480), (24, 1305045), (27, 1160040), (28, 1118610), (30, 1044036), (35, 894888), (36, 870030), (40, 783027), (42, 745740), (45, 696024), (54, 580020), (56, 559305), (60, 522018), (63, 497160), (70, 447444), (72, 435015), (81, 386680), (84, 372870), (90, 348012), (105, 298296), (108, 290010), (120, 261009), (126, 248580), (135, 232008), (140, 223722), (162, 193340), (168, 186435), (180, 174006), (189, 165720), (210, 149148), (216, 145005), (252, 124290), (270, 116004), (280, 111861), (315, 99432), (324, 96670), (360, 87003), (378, 82860), (405, 77336), (420, 74574), (504, 62145), (540, 58002), (567, 55240), (630, 49716), (648, 48335), (756, 41430), (810, 38668), (840, 37287), (945, 33144), (1080, 29001), (1134, 27620), (1260, 24858), (1381, 22680), (1512, 20715), (1620, 19334), (1890, 16572), (2268, 13810), (2520, 12429), (2762, 11340), (2835, 11048), (3240, 9667), (3780, 8286), (4143, 7560), (4536, 6905), (5524, 5670)]