19992158720

素因数分解:

$2^9\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{2957}}^1$

素因数の和:3138

約数の個数: 160

約数和(自身を含む): 50837371200

約数和(自身を除く): 30845212480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 139, 152, 160, 190, 256, 278, 304, 320, 380, 512, 556, 608, 640, 695, 760, 1112, 1216, 1280, 1390, 1520, 2224, 2432, 2560, 2641, 2780, 2957, 3040, 4448, 4864, 5282, 5560, 5914, 6080, 8896, 9728, 10564, 11120, 11828, 12160, 13205, 14785, 17792, 21128, 22240, 23656, 24320, 26410, 29570, 35584, 42256, 44480, 47312, 48640, 52820, 56183, 59140, 71168, 84512, 88960, 94624, 105640, 112366, 118280, 169024, 177920, 189248, 211280, 224732, 236560, 280915, 338048, 355840, 378496, 411023, 422560, 449464, 473120, 561830, 676096, 756992, 822046, 845120, 898928, 946240, 1123660, 1352192, 1513984, 1644092, 1690240, 1797856, 1892480, 2055115, 2247320, 3288184, 3380480, 3595712, 3784960, 4110230, 4494640, 6576368, 6760960, 7191424, 7569920, 7809437, 8220460, 8989280, 13152736, 14382848, 15618874, 16440920, 17978560, 26305472, 28765696, 31237748, 32881840, 35957120, 39047185, 52610944, 62475496, 65763680, 71914240, 78094370, 105221888, 124950992, 131527360, 143828480, 156188740, 210443776, 249901984, 263054720, 312377480, 499803968, 526109440, 624754960, 999607936, 1052218880, 1249509920, 1999215872, 2499019840, 3998431744, 4998039680, 9996079360, 19992158720]

約数ペア:

[(1, 19992158720), (2, 9996079360), (4, 4998039680), (5, 3998431744), (8, 2499019840), (10, 1999215872), (16, 1249509920), (19, 1052218880), (20, 999607936), (32, 624754960), (38, 526109440), (40, 499803968), (64, 312377480), (76, 263054720), (80, 249901984), (95, 210443776), (128, 156188740), (139, 143828480), (152, 131527360), (160, 124950992), (190, 105221888), (256, 78094370), (278, 71914240), (304, 65763680), (320, 62475496), (380, 52610944), (512, 39047185), (556, 35957120), (608, 32881840), (640, 31237748), (695, 28765696), (760, 26305472), (1112, 17978560), (1216, 16440920), (1280, 15618874), (1390, 14382848), (1520, 13152736), (2224, 8989280), (2432, 8220460), (2560, 7809437), (2641, 7569920), (2780, 7191424), (2957, 6760960), (3040, 6576368), (4448, 4494640), (4864, 4110230), (5282, 3784960), (5560, 3595712), (5914, 3380480), (6080, 3288184), (8896, 2247320), (9728, 2055115), (10564, 1892480), (11120, 1797856), (11828, 1690240), (12160, 1644092), (13205, 1513984), (14785, 1352192), (17792, 1123660), (21128, 946240), (22240, 898928), (23656, 845120), (24320, 822046), (26410, 756992), (29570, 676096), (35584, 561830), (42256, 473120), (44480, 449464), (47312, 422560), (48640, 411023), (52820, 378496), (56183, 355840), (59140, 338048), (71168, 280915), (84512, 236560), (88960, 224732), (94624, 211280), (105640, 189248), (112366, 177920), (118280, 169024)]