217638972

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:264

約数の個数: 144

約数和(自身を含む): 606627840

約数和(自身を除く): 388988868

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 31, 36, 46, 61, 62, 69, 92, 93, 122, 124, 138, 139, 183, 186, 207, 244, 276, 278, 279, 366, 372, 414, 417, 549, 556, 558, 713, 732, 828, 834, 1098, 1116, 1251, 1403, 1426, 1668, 1891, 2139, 2196, 2502, 2806, 2852, 3197, 3782, 4209, 4278, 4309, 5004, 5612, 5673, 6394, 6417, 7564, 8418, 8479, 8556, 8618, 9591, 11346, 12627, 12788, 12834, 12927, 16836, 16958, 17019, 17236, 19182, 22692, 25254, 25437, 25668, 25854, 28773, 33916, 34038, 38364, 38781, 43493, 50508, 50874, 51708, 57546, 68076, 76311, 77562, 86986, 99107, 101748, 115092, 130479, 152622, 155124, 173972, 195017, 198214, 260958, 262849, 297321, 305244, 390034, 391437, 396428, 521916, 525698, 585051, 594642, 780068, 782874, 788547, 891963, 1051396, 1170102, 1189284, 1565748, 1577094, 1755153, 1783926, 2340204, 2365641, 3154188, 3510306, 3567852, 4731282, 6045527, 7020612, 9462564, 12091054, 18136581, 24182108, 36273162, 54409743, 72546324, 108819486, 217638972]

約数ペア:

[(1, 217638972), (2, 108819486), (3, 72546324), (4, 54409743), (6, 36273162), (9, 24182108), (12, 18136581), (18, 12091054), (23, 9462564), (31, 7020612), (36, 6045527), (46, 4731282), (61, 3567852), (62, 3510306), (69, 3154188), (92, 2365641), (93, 2340204), (122, 1783926), (124, 1755153), (138, 1577094), (139, 1565748), (183, 1189284), (186, 1170102), (207, 1051396), (244, 891963), (276, 788547), (278, 782874), (279, 780068), (366, 594642), (372, 585051), (414, 525698), (417, 521916), (549, 396428), (556, 391437), (558, 390034), (713, 305244), (732, 297321), (828, 262849), (834, 260958), (1098, 198214), (1116, 195017), (1251, 173972), (1403, 155124), (1426, 152622), (1668, 130479), (1891, 115092), (2139, 101748), (2196, 99107), (2502, 86986), (2806, 77562), (2852, 76311), (3197, 68076), (3782, 57546), (4209, 51708), (4278, 50874), (4309, 50508), (5004, 43493), (5612, 38781), (5673, 38364), (6394, 34038), (6417, 33916), (7564, 28773), (8418, 25854), (8479, 25668), (8556, 25437), (8618, 25254), (9591, 22692), (11346, 19182), (12627, 17236), (12788, 17019), (12834, 16958), (12927, 16836)]