31147480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:273

約数の個数: 128

約数和(自身を含む): 88704000

約数和(自身を除く): 57556520

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 43, 52, 56, 65, 70, 86, 91, 104, 130, 140, 172, 182, 199, 215, 260, 280, 301, 344, 364, 398, 430, 455, 520, 559, 602, 728, 796, 860, 910, 995, 1118, 1204, 1393, 1505, 1592, 1720, 1820, 1990, 2236, 2408, 2587, 2786, 2795, 3010, 3640, 3913, 3980, 4472, 5174, 5572, 5590, 6020, 6965, 7826, 7960, 8557, 10348, 11144, 11180, 12040, 12935, 13930, 15652, 17114, 18109, 19565, 20696, 22360, 25870, 27860, 31304, 34228, 36218, 39130, 42785, 51740, 55720, 59899, 68456, 72436, 78260, 85570, 90545, 103480, 111241, 119798, 144872, 156520, 171140, 181090, 222482, 239596, 299495, 342280, 362180, 444964, 479192, 556205, 598990, 724360, 778687, 889928, 1112410, 1197980, 1557374, 2224820, 2395960, 3114748, 3893435, 4449640, 6229496, 7786870, 15573740, 31147480]

約数ペア:

[(1, 31147480), (2, 15573740), (4, 7786870), (5, 6229496), (7, 4449640), (8, 3893435), (10, 3114748), (13, 2395960), (14, 2224820), (20, 1557374), (26, 1197980), (28, 1112410), (35, 889928), (40, 778687), (43, 724360), (52, 598990), (56, 556205), (65, 479192), (70, 444964), (86, 362180), (91, 342280), (104, 299495), (130, 239596), (140, 222482), (172, 181090), (182, 171140), (199, 156520), (215, 144872), (260, 119798), (280, 111241), (301, 103480), (344, 90545), (364, 85570), (398, 78260), (430, 72436), (455, 68456), (520, 59899), (559, 55720), (602, 51740), (728, 42785), (796, 39130), (860, 36218), (910, 34228), (995, 31304), (1118, 27860), (1204, 25870), (1393, 22360), (1505, 20696), (1592, 19565), (1720, 18109), (1820, 17114), (1990, 15652), (2236, 13930), (2408, 12935), (2587, 12040), (2786, 11180), (2795, 11144), (3010, 10348), (3640, 8557), (3913, 7960), (3980, 7826), (4472, 6965), (5174, 6020), (5572, 5590)]