321556144

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{821}}^1$

素因数の和:1118

約数の個数: 80

約数和(自身を含む): 770575680

約数和(自身を除く): 449019536

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 269, 364, 538, 728, 821, 1076, 1456, 1642, 1883, 2152, 3284, 3497, 3766, 4304, 5747, 6568, 6994, 7532, 10673, 11494, 13136, 13988, 15064, 21346, 22988, 24479, 27976, 30128, 42692, 45976, 48958, 55952, 74711, 85384, 91952, 97916, 149422, 170768, 195832, 220849, 298844, 391664, 441698, 597688, 883396, 1195376, 1545943, 1766792, 2871037, 3091886, 3533584, 5742074, 6183772, 11484148, 12367544, 20097259, 22968296, 24735088, 40194518, 45936592, 80389036, 160778072, 321556144]

約数ペア:

[(1, 321556144), (2, 160778072), (4, 80389036), (7, 45936592), (8, 40194518), (13, 24735088), (14, 22968296), (16, 20097259), (26, 12367544), (28, 11484148), (52, 6183772), (56, 5742074), (91, 3533584), (104, 3091886), (112, 2871037), (182, 1766792), (208, 1545943), (269, 1195376), (364, 883396), (538, 597688), (728, 441698), (821, 391664), (1076, 298844), (1456, 220849), (1642, 195832), (1883, 170768), (2152, 149422), (3284, 97916), (3497, 91952), (3766, 85384), (4304, 74711), (5747, 55952), (6568, 48958), (6994, 45976), (7532, 42692), (10673, 30128), (11494, 27976), (13136, 24479), (13988, 22988), (15064, 21346)]