18938970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1291}}^1$

素因数の和:1467

約数の個数: 48

約数和(自身を含む): 49581792

約数和(自身を除く): 30642822

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 163, 326, 489, 815, 978, 1291, 1467, 1630, 2445, 2582, 2934, 3873, 4890, 6455, 7335, 7746, 11619, 12910, 14670, 19365, 23238, 38730, 58095, 116190, 210433, 420866, 631299, 1052165, 1262598, 1893897, 2104330, 3156495, 3787794, 6312990, 9469485, 18938970]

約数ペア:

[(1, 18938970), (2, 9469485), (3, 6312990), (5, 3787794), (6, 3156495), (9, 2104330), (10, 1893897), (15, 1262598), (18, 1052165), (30, 631299), (45, 420866), (90, 210433), (163, 116190), (326, 58095), (489, 38730), (815, 23238), (978, 19365), (1291, 14670), (1467, 12910), (1630, 11619), (2445, 7746), (2582, 7335), (2934, 6455), (3873, 4890)]