18937520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{4831}}^1$

素因数の和:4858

約数の個数: 60

約数和(自身を含む): 51228864

約数和(自身を除く): 32291344

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, 392, 490, 560, 784, 980, 1960, 3920, 4831, 9662, 19324, 24155, 33817, 38648, 48310, 67634, 77296, 96620, 135268, 169085, 193240, 236719, 270536, 338170, 386480, 473438, 541072, 676340, 946876, 1183595, 1352680, 1893752, 2367190, 2705360, 3787504, 4734380, 9468760, 18937520]

約数ペア:

[(1, 18937520), (2, 9468760), (4, 4734380), (5, 3787504), (7, 2705360), (8, 2367190), (10, 1893752), (14, 1352680), (16, 1183595), (20, 946876), (28, 676340), (35, 541072), (40, 473438), (49, 386480), (56, 338170), (70, 270536), (80, 236719), (98, 193240), (112, 169085), (140, 135268), (196, 96620), (245, 77296), (280, 67634), (392, 48310), (490, 38648), (560, 33817), (784, 24155), (980, 19324), (1960, 9662), (3920, 4831)]