18971120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1783}}^1$

素因数の和:1822

約数の個数: 80

約数和(自身を含む): 53091840

約数和(自身を除く): 34120720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 190, 266, 280, 304, 380, 532, 560, 665, 760, 1064, 1330, 1520, 1783, 2128, 2660, 3566, 5320, 7132, 8915, 10640, 12481, 14264, 17830, 24962, 28528, 33877, 35660, 49924, 62405, 67754, 71320, 99848, 124810, 135508, 142640, 169385, 199696, 237139, 249620, 271016, 338770, 474278, 499240, 542032, 677540, 948556, 998480, 1185695, 1355080, 1897112, 2371390, 2710160, 3794224, 4742780, 9485560, 18971120]

約数ペア:

[(1, 18971120), (2, 9485560), (4, 4742780), (5, 3794224), (7, 2710160), (8, 2371390), (10, 1897112), (14, 1355080), (16, 1185695), (19, 998480), (20, 948556), (28, 677540), (35, 542032), (38, 499240), (40, 474278), (56, 338770), (70, 271016), (76, 249620), (80, 237139), (95, 199696), (112, 169385), (133, 142640), (140, 135508), (152, 124810), (190, 99848), (266, 71320), (280, 67754), (304, 62405), (380, 49924), (532, 35660), (560, 33877), (665, 28528), (760, 24962), (1064, 17830), (1330, 14264), (1520, 12481), (1783, 10640), (2128, 8915), (2660, 7132), (3566, 5320)]