199982720

素因数分解:

$2^7\times 5^1\times 7^3\times {\mathrm{911}}^1$

素因数の和:951

約数の個数: 128

約数和(自身を含む): 558144000

約数和(自身を除く): 358161280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 280, 320, 343, 392, 448, 490, 560, 640, 686, 784, 896, 911, 980, 1120, 1372, 1568, 1715, 1822, 1960, 2240, 2744, 3136, 3430, 3644, 3920, 4480, 4555, 5488, 6272, 6377, 6860, 7288, 7840, 9110, 10976, 12754, 13720, 14576, 15680, 18220, 21952, 25508, 27440, 29152, 31360, 31885, 36440, 43904, 44639, 51016, 54880, 58304, 63770, 72880, 89278, 102032, 109760, 116608, 127540, 145760, 178556, 204064, 219520, 223195, 255080, 291520, 312473, 357112, 408128, 446390, 510160, 583040, 624946, 714224, 816256, 892780, 1020320, 1249892, 1428448, 1562365, 1785560, 2040640, 2499784, 2856896, 3124730, 3571120, 4081280, 4999568, 5713792, 6249460, 7142240, 9999136, 12498920, 14284480, 19998272, 24997840, 28568960, 39996544, 49995680, 99991360, 199982720]

約数ペア:

[(1, 199982720), (2, 99991360), (4, 49995680), (5, 39996544), (7, 28568960), (8, 24997840), (10, 19998272), (14, 14284480), (16, 12498920), (20, 9999136), (28, 7142240), (32, 6249460), (35, 5713792), (40, 4999568), (49, 4081280), (56, 3571120), (64, 3124730), (70, 2856896), (80, 2499784), (98, 2040640), (112, 1785560), (128, 1562365), (140, 1428448), (160, 1249892), (196, 1020320), (224, 892780), (245, 816256), (280, 714224), (320, 624946), (343, 583040), (392, 510160), (448, 446390), (490, 408128), (560, 357112), (640, 312473), (686, 291520), (784, 255080), (896, 223195), (911, 219520), (980, 204064), (1120, 178556), (1372, 145760), (1568, 127540), (1715, 116608), (1822, 109760), (1960, 102032), (2240, 89278), (2744, 72880), (3136, 63770), (3430, 58304), (3644, 54880), (3920, 51016), (4480, 44639), (4555, 43904), (5488, 36440), (6272, 31885), (6377, 31360), (6860, 29152), (7288, 27440), (7840, 25508), (9110, 21952), (10976, 18220), (12754, 15680), (13720, 14576)]