80646160

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{2939}}^1$

素因数の和:2973

約数の個数: 80

約数和(自身を含む): 218736000

約数和(自身を除く): 138089840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1372, 1715, 1960, 2744, 2939, 3430, 3920, 5488, 5878, 6860, 11756, 13720, 14695, 20573, 23512, 27440, 29390, 41146, 47024, 58780, 82292, 102865, 117560, 144011, 164584, 205730, 235120, 288022, 329168, 411460, 576044, 720055, 822920, 1008077, 1152088, 1440110, 1645840, 2016154, 2304176, 2880220, 4032308, 5040385, 5760440, 8064616, 10080770, 11520880, 16129232, 20161540, 40323080, 80646160]

約数ペア:

[(1, 80646160), (2, 40323080), (4, 20161540), (5, 16129232), (7, 11520880), (8, 10080770), (10, 8064616), (14, 5760440), (16, 5040385), (20, 4032308), (28, 2880220), (35, 2304176), (40, 2016154), (49, 1645840), (56, 1440110), (70, 1152088), (80, 1008077), (98, 822920), (112, 720055), (140, 576044), (196, 411460), (245, 329168), (280, 288022), (343, 235120), (392, 205730), (490, 164584), (560, 144011), (686, 117560), (784, 102865), (980, 82292), (1372, 58780), (1715, 47024), (1960, 41146), (2744, 29390), (2939, 27440), (3430, 23512), (3920, 20573), (5488, 14695), (5878, 13720), (6860, 11756)]