861560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1$

素因数の和:216

約数の個数: 64

約数和(自身を含む): 2358720

約数和(自身を除く): 1497160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 170, 181, 238, 280, 340, 362, 476, 595, 680, 724, 905, 952, 1190, 1267, 1448, 1810, 2380, 2534, 3077, 3620, 4760, 5068, 6154, 6335, 7240, 10136, 12308, 12670, 15385, 21539, 24616, 25340, 30770, 43078, 50680, 61540, 86156, 107695, 123080, 172312, 215390, 430780, 861560]

約数ペア:

[(1, 861560), (2, 430780), (4, 215390), (5, 172312), (7, 123080), (8, 107695), (10, 86156), (14, 61540), (17, 50680), (20, 43078), (28, 30770), (34, 25340), (35, 24616), (40, 21539), (56, 15385), (68, 12670), (70, 12308), (85, 10136), (119, 7240), (136, 6335), (140, 6154), (170, 5068), (181, 4760), (238, 3620), (280, 3077), (340, 2534), (362, 2380), (476, 1810), (595, 1448), (680, 1267), (724, 1190), (905, 952)]