20122493920

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{557}}^1\times {\mathrm{9817}}^1$

素因数の和:10412

約数の個数: 96

約数和(自身を含む): 49700443968

約数和(自身を除く): 29577950048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 368, 460, 557, 736, 920, 1114, 1840, 2228, 2785, 3680, 4456, 5570, 8912, 9817, 11140, 12811, 17824, 19634, 22280, 25622, 39268, 44560, 49085, 51244, 64055, 78536, 89120, 98170, 102488, 128110, 157072, 196340, 204976, 225791, 256220, 314144, 392680, 409952, 451582, 512440, 785360, 903164, 1024880, 1128955, 1570720, 1806328, 2049760, 2257910, 3612656, 4515820, 5468069, 7225312, 9031640, 10936138, 18063280, 21872276, 27340345, 36126560, 43744552, 54680690, 87489104, 109361380, 125765587, 174978208, 218722760, 251531174, 437445520, 503062348, 628827935, 874891040, 1006124696, 1257655870, 2012249392, 2515311740, 4024498784, 5030623480, 10061246960, 20122493920]

約数ペア:

[(1, 20122493920), (2, 10061246960), (4, 5030623480), (5, 4024498784), (8, 2515311740), (10, 2012249392), (16, 1257655870), (20, 1006124696), (23, 874891040), (32, 628827935), (40, 503062348), (46, 437445520), (80, 251531174), (92, 218722760), (115, 174978208), (160, 125765587), (184, 109361380), (230, 87489104), (368, 54680690), (460, 43744552), (557, 36126560), (736, 27340345), (920, 21872276), (1114, 18063280), (1840, 10936138), (2228, 9031640), (2785, 7225312), (3680, 5468069), (4456, 4515820), (5570, 3612656), (8912, 2257910), (9817, 2049760), (11140, 1806328), (12811, 1570720), (17824, 1128955), (19634, 1024880), (22280, 903164), (25622, 785360), (39268, 512440), (44560, 451582), (49085, 409952), (51244, 392680), (64055, 314144), (78536, 256220), (89120, 225791), (98170, 204976), (102488, 196340), (128110, 157072)]