20476476800

素因数分解:

$2^7\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{21401}}^1$

素因数の和:21461

約数の個数: 192

約数和(自身を含む): 56845424160

約数和(自身を除く): 36368947360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 25, 26, 32, 40, 46, 50, 52, 64, 65, 80, 92, 100, 104, 115, 128, 130, 160, 184, 200, 208, 230, 260, 299, 320, 325, 368, 400, 416, 460, 520, 575, 598, 640, 650, 736, 800, 832, 920, 1040, 1150, 1196, 1300, 1472, 1495, 1600, 1664, 1840, 2080, 2300, 2392, 2600, 2944, 2990, 3200, 3680, 4160, 4600, 4784, 5200, 5980, 7360, 7475, 8320, 9200, 9568, 10400, 11960, 14720, 14950, 18400, 19136, 20800, 21401, 23920, 29900, 36800, 38272, 41600, 42802, 47840, 59800, 73600, 85604, 95680, 107005, 119600, 171208, 191360, 214010, 239200, 278213, 342416, 428020, 478400, 492223, 535025, 556426, 684832, 856040, 956800, 984446, 1070050, 1112852, 1369664, 1391065, 1712080, 1968892, 2140100, 2225704, 2461115, 2739328, 2782130, 3424160, 3937784, 4280200, 4451408, 4922230, 5564260, 6398899, 6848320, 6955325, 7875568, 8560400, 8902816, 9844460, 11128520, 12305575, 12797798, 13696640, 13910650, 15751136, 17120800, 17805632, 19688920, 22257040, 24611150, 25595596, 27821300, 31502272, 31994495, 34241600, 35611264, 39377840, 44514080, 49222300, 51191192, 55642600, 63004544, 63988990, 68483200, 78755680, 89028160, 98444600, 102382384, 111285200, 127977980, 157511360, 159972475, 178056320, 196889200, 204764768, 222570400, 255955960, 315022720, 319944950, 393778400, 409529536, 445140800, 511911920, 639889900, 787556800, 819059072, 890281600, 1023823840, 1279779800, 1575113600, 2047647680, 2559559600, 4095295360, 5119119200, 10238238400, 20476476800]

約数ペア:

[(1, 20476476800), (2, 10238238400), (4, 5119119200), (5, 4095295360), (8, 2559559600), (10, 2047647680), (13, 1575113600), (16, 1279779800), (20, 1023823840), (23, 890281600), (25, 819059072), (26, 787556800), (32, 639889900), (40, 511911920), (46, 445140800), (50, 409529536), (52, 393778400), (64, 319944950), (65, 315022720), (80, 255955960), (92, 222570400), (100, 204764768), (104, 196889200), (115, 178056320), (128, 159972475), (130, 157511360), (160, 127977980), (184, 111285200), (200, 102382384), (208, 98444600), (230, 89028160), (260, 78755680), (299, 68483200), (320, 63988990), (325, 63004544), (368, 55642600), (400, 51191192), (416, 49222300), (460, 44514080), (520, 39377840), (575, 35611264), (598, 34241600), (640, 31994495), (650, 31502272), (736, 27821300), (800, 25595596), (832, 24611150), (920, 22257040), (1040, 19688920), (1150, 17805632), (1196, 17120800), (1300, 15751136), (1472, 13910650), (1495, 13696640), (1600, 12797798), (1664, 12305575), (1840, 11128520), (2080, 9844460), (2300, 8902816), (2392, 8560400), (2600, 7875568), (2944, 6955325), (2990, 6848320), (3200, 6398899), (3680, 5564260), (4160, 4922230), (4600, 4451408), (4784, 4280200), (5200, 3937784), (5980, 3424160), (7360, 2782130), (7475, 2739328), (8320, 2461115), (9200, 2225704), (9568, 2140100), (10400, 1968892), (11960, 1712080), (14720, 1391065), (14950, 1369664), (18400, 1112852), (19136, 1070050), (20800, 984446), (21401, 956800), (23920, 856040), (29900, 684832), (36800, 556426), (38272, 535025), (41600, 492223), (42802, 478400), (47840, 428020), (59800, 342416), (73600, 278213), (85604, 239200), (95680, 214010), (107005, 191360), (119600, 171208)]