18638240

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6131}}^1$

素因数の和:6165

約数の個数: 48

約数和(自身を含む): 46357920

約数和(自身を除く): 27719680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 6131, 12262, 24524, 30655, 49048, 61310, 98096, 116489, 122620, 196192, 232978, 245240, 465956, 490480, 582445, 931912, 980960, 1164890, 1863824, 2329780, 3727648, 4659560, 9319120, 18638240]

約数ペア:

[(1, 18638240), (2, 9319120), (4, 4659560), (5, 3727648), (8, 2329780), (10, 1863824), (16, 1164890), (19, 980960), (20, 931912), (32, 582445), (38, 490480), (40, 465956), (76, 245240), (80, 232978), (95, 196192), (152, 122620), (160, 116489), (190, 98096), (304, 61310), (380, 49048), (608, 30655), (760, 24524), (1520, 12262), (3040, 6131)]