20321328

素因数分解:

$2^4\times 3^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{233}}^1$

素因数の和:346

約数の個数: 80

約数和(自身を含む): 55710720

約数和(自身を除く): 35389392

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 46, 48, 69, 79, 92, 138, 158, 184, 233, 237, 276, 316, 368, 466, 474, 552, 632, 699, 932, 948, 1104, 1264, 1398, 1817, 1864, 1896, 2796, 3634, 3728, 3792, 5359, 5451, 5592, 7268, 10718, 10902, 11184, 14536, 16077, 18407, 21436, 21804, 29072, 32154, 36814, 42872, 43608, 55221, 64308, 73628, 85744, 87216, 110442, 128616, 147256, 220884, 257232, 294512, 423361, 441768, 846722, 883536, 1270083, 1693444, 2540166, 3386888, 5080332, 6773776, 10160664, 20321328]

約数ペア:

[(1, 20321328), (2, 10160664), (3, 6773776), (4, 5080332), (6, 3386888), (8, 2540166), (12, 1693444), (16, 1270083), (23, 883536), (24, 846722), (46, 441768), (48, 423361), (69, 294512), (79, 257232), (92, 220884), (138, 147256), (158, 128616), (184, 110442), (233, 87216), (237, 85744), (276, 73628), (316, 64308), (368, 55221), (466, 43608), (474, 42872), (552, 36814), (632, 32154), (699, 29072), (932, 21804), (948, 21436), (1104, 18407), (1264, 16077), (1398, 14536), (1817, 11184), (1864, 10902), (1896, 10718), (2796, 7268), (3634, 5592), (3728, 5451), (3792, 5359)]