820597128

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{661}}^1$

素因数の和:879

約数の個数: 128

約数和(自身を含む): 2322190080

約数和(自身を除く): 1501592952

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 23, 24, 26, 39, 46, 52, 69, 78, 92, 104, 138, 156, 173, 184, 276, 299, 312, 346, 519, 552, 598, 661, 692, 897, 1038, 1196, 1322, 1384, 1794, 1983, 2076, 2249, 2392, 2644, 3588, 3966, 3979, 4152, 4498, 5288, 6747, 7176, 7932, 7958, 8593, 8996, 11937, 13494, 15203, 15864, 15916, 17186, 17992, 23874, 25779, 26988, 30406, 31832, 34372, 45609, 47748, 51558, 51727, 53976, 60812, 68744, 91218, 95496, 103116, 103454, 114353, 121624, 155181, 182436, 197639, 206232, 206908, 228706, 310362, 343059, 364872, 395278, 413816, 457412, 592917, 620724, 686118, 790556, 914824, 1185834, 1241448, 1372236, 1486589, 1581112, 2371668, 2630119, 2744472, 2973178, 4459767, 4743336, 5260238, 5946356, 7890357, 8919534, 10520476, 11892712, 15780714, 17839068, 21040952, 31561428, 34191547, 35678136, 63122856, 68383094, 102574641, 136766188, 205149282, 273532376, 410298564, 820597128]

約数ペア:

[(1, 820597128), (2, 410298564), (3, 273532376), (4, 205149282), (6, 136766188), (8, 102574641), (12, 68383094), (13, 63122856), (23, 35678136), (24, 34191547), (26, 31561428), (39, 21040952), (46, 17839068), (52, 15780714), (69, 11892712), (78, 10520476), (92, 8919534), (104, 7890357), (138, 5946356), (156, 5260238), (173, 4743336), (184, 4459767), (276, 2973178), (299, 2744472), (312, 2630119), (346, 2371668), (519, 1581112), (552, 1486589), (598, 1372236), (661, 1241448), (692, 1185834), (897, 914824), (1038, 790556), (1196, 686118), (1322, 620724), (1384, 592917), (1794, 457412), (1983, 413816), (2076, 395278), (2249, 364872), (2392, 343059), (2644, 310362), (3588, 228706), (3966, 206908), (3979, 206232), (4152, 197639), (4498, 182436), (5288, 155181), (6747, 121624), (7176, 114353), (7932, 103454), (7958, 103116), (8593, 95496), (8996, 91218), (11937, 68744), (13494, 60812), (15203, 53976), (15864, 51727), (15916, 51558), (17186, 47748), (17992, 45609), (23874, 34372), (25779, 31832), (26988, 30406)]