1999777920

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{148793}}^1$

素因数の和:148822

約数の個数: 128

約数和(自身を含む): 7284954240

約数和(自身を除く): 5285176320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 840, 896, 960, 1120, 1344, 1680, 1920, 2240, 2688, 3360, 4480, 6720, 13440, 148793, 297586, 446379, 595172, 743965, 892758, 1041551, 1190344, 1487930, 1785516, 2083102, 2231895, 2380688, 2975860, 3124653, 3571032, 4166204, 4463790, 4761376, 5207755, 5951720, 6249306, 7142064, 8332408, 8927580, 9522752, 10415510, 11903440, 12498612, 14284128, 15623265, 16664816, 17855160, 19045504, 20831020, 23806880, 24997224, 28568256, 31246530, 33329632, 35710320, 41662040, 47613760, 49994448, 57136512, 62493060, 66659264, 71420640, 83324080, 95227520, 99988896, 124986120, 133318528, 142841280, 166648160, 199977792, 249972240, 285682560, 333296320, 399955584, 499944480, 666592640, 999888960, 1999777920]

約数ペア:

[(1, 1999777920), (2, 999888960), (3, 666592640), (4, 499944480), (5, 399955584), (6, 333296320), (7, 285682560), (8, 249972240), (10, 199977792), (12, 166648160), (14, 142841280), (15, 133318528), (16, 124986120), (20, 99988896), (21, 95227520), (24, 83324080), (28, 71420640), (30, 66659264), (32, 62493060), (35, 57136512), (40, 49994448), (42, 47613760), (48, 41662040), (56, 35710320), (60, 33329632), (64, 31246530), (70, 28568256), (80, 24997224), (84, 23806880), (96, 20831020), (105, 19045504), (112, 17855160), (120, 16664816), (128, 15623265), (140, 14284128), (160, 12498612), (168, 11903440), (192, 10415510), (210, 9522752), (224, 8927580), (240, 8332408), (280, 7142064), (320, 6249306), (336, 5951720), (384, 5207755), (420, 4761376), (448, 4463790), (480, 4166204), (560, 3571032), (640, 3124653), (672, 2975860), (840, 2380688), (896, 2231895), (960, 2083102), (1120, 1785516), (1344, 1487930), (1680, 1190344), (1920, 1041551), (2240, 892758), (2688, 743965), (3360, 595172), (4480, 446379), (6720, 297586), (13440, 148793)]