161981856

素因数分解:

$2^5\times 3^5\times {\mathrm{37}}^1\times {\mathrm{563}}^1$

素因数の和:625

約数の個数: 144

約数和(自身を含む): 491478624

約数和(自身を除く): 329496768

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 37, 48, 54, 72, 74, 81, 96, 108, 111, 144, 148, 162, 216, 222, 243, 288, 296, 324, 333, 432, 444, 486, 563, 592, 648, 666, 864, 888, 972, 999, 1126, 1184, 1296, 1332, 1689, 1776, 1944, 1998, 2252, 2592, 2664, 2997, 3378, 3552, 3888, 3996, 4504, 5067, 5328, 5994, 6756, 7776, 7992, 8991, 9008, 10134, 10656, 11988, 13512, 15201, 15984, 17982, 18016, 20268, 20831, 23976, 27024, 30402, 31968, 35964, 40536, 41662, 45603, 47952, 54048, 60804, 62493, 71928, 81072, 83324, 91206, 95904, 121608, 124986, 136809, 143856, 162144, 166648, 182412, 187479, 243216, 249972, 273618, 287712, 333296, 364824, 374958, 486432, 499944, 547236, 562437, 666592, 729648, 749916, 999888, 1094472, 1124874, 1459296, 1499832, 1687311, 1999776, 2188944, 2249748, 2999664, 3374622, 4377888, 4499496, 5061933, 5999328, 6749244, 8998992, 10123866, 13498488, 17997984, 20247732, 26996976, 40495464, 53993952, 80990928, 161981856]

約数ペア:

[(1, 161981856), (2, 80990928), (3, 53993952), (4, 40495464), (6, 26996976), (8, 20247732), (9, 17997984), (12, 13498488), (16, 10123866), (18, 8998992), (24, 6749244), (27, 5999328), (32, 5061933), (36, 4499496), (37, 4377888), (48, 3374622), (54, 2999664), (72, 2249748), (74, 2188944), (81, 1999776), (96, 1687311), (108, 1499832), (111, 1459296), (144, 1124874), (148, 1094472), (162, 999888), (216, 749916), (222, 729648), (243, 666592), (288, 562437), (296, 547236), (324, 499944), (333, 486432), (432, 374958), (444, 364824), (486, 333296), (563, 287712), (592, 273618), (648, 249972), (666, 243216), (864, 187479), (888, 182412), (972, 166648), (999, 162144), (1126, 143856), (1184, 136809), (1296, 124986), (1332, 121608), (1689, 95904), (1776, 91206), (1944, 83324), (1998, 81072), (2252, 71928), (2592, 62493), (2664, 60804), (2997, 54048), (3378, 47952), (3552, 45603), (3888, 41662), (3996, 40536), (4504, 35964), (5067, 31968), (5328, 30402), (5994, 27024), (6756, 23976), (7776, 20831), (7992, 20268), (8991, 18016), (9008, 17982), (10134, 15984), (10656, 15201), (11988, 13512)]