990180800

素因数分解:

$2^6\times 5^2\times 7^1\times {\mathrm{211}}^1\times {\mathrm{419}}^1$

素因数の和:659

約数の個数: 168

約数和(自身を含む): 2804403840

約数和(自身を除く): 1814223040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 100, 112, 140, 160, 175, 200, 211, 224, 280, 320, 350, 400, 419, 422, 448, 560, 700, 800, 838, 844, 1055, 1120, 1400, 1477, 1600, 1676, 1688, 2095, 2110, 2240, 2800, 2933, 2954, 3352, 3376, 4190, 4220, 5275, 5600, 5866, 5908, 6704, 6752, 7385, 8380, 8440, 10475, 10550, 11200, 11732, 11816, 13408, 13504, 14665, 14770, 16760, 16880, 20950, 21100, 23464, 23632, 26816, 29330, 29540, 33520, 33760, 36925, 41900, 42200, 46928, 47264, 58660, 59080, 67040, 67520, 73325, 73850, 83800, 84400, 88409, 93856, 94528, 117320, 118160, 134080, 146650, 147700, 167600, 168800, 176818, 187712, 234640, 236320, 293300, 295400, 335200, 337600, 353636, 442045, 469280, 472640, 586600, 590800, 618863, 670400, 707272, 884090, 938560, 1173200, 1181600, 1237726, 1414544, 1768180, 2210225, 2346400, 2363200, 2475452, 2829088, 3094315, 3536360, 4420450, 4692800, 4950904, 5658176, 6188630, 7072720, 8840900, 9901808, 12377260, 14145440, 15471575, 17681800, 19803616, 24754520, 28290880, 30943150, 35363600, 39607232, 49509040, 61886300, 70727200, 99018080, 123772600, 141454400, 198036160, 247545200, 495090400, 990180800]

約数ペア:

[(1, 990180800), (2, 495090400), (4, 247545200), (5, 198036160), (7, 141454400), (8, 123772600), (10, 99018080), (14, 70727200), (16, 61886300), (20, 49509040), (25, 39607232), (28, 35363600), (32, 30943150), (35, 28290880), (40, 24754520), (50, 19803616), (56, 17681800), (64, 15471575), (70, 14145440), (80, 12377260), (100, 9901808), (112, 8840900), (140, 7072720), (160, 6188630), (175, 5658176), (200, 4950904), (211, 4692800), (224, 4420450), (280, 3536360), (320, 3094315), (350, 2829088), (400, 2475452), (419, 2363200), (422, 2346400), (448, 2210225), (560, 1768180), (700, 1414544), (800, 1237726), (838, 1181600), (844, 1173200), (1055, 938560), (1120, 884090), (1400, 707272), (1477, 670400), (1600, 618863), (1676, 590800), (1688, 586600), (2095, 472640), (2110, 469280), (2240, 442045), (2800, 353636), (2933, 337600), (2954, 335200), (3352, 295400), (3376, 293300), (4190, 236320), (4220, 234640), (5275, 187712), (5600, 176818), (5866, 168800), (5908, 167600), (6704, 147700), (6752, 146650), (7385, 134080), (8380, 118160), (8440, 117320), (10475, 94528), (10550, 93856), (11200, 88409), (11732, 84400), (11816, 83800), (13408, 73850), (13504, 73325), (14665, 67520), (14770, 67040), (16760, 59080), (16880, 58660), (20950, 47264), (21100, 46928), (23464, 42200), (23632, 41900), (26816, 36925), (29330, 33760), (29540, 33520)]