19499795

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:168

約数の個数: 48

約数和(自身を含む): 29548800

約数和(自身を除く): 10049005

約数列:

[1, 5, 7, 19, 35, 49, 59, 71, 95, 133, 245, 295, 355, 413, 497, 665, 931, 1121, 1349, 2065, 2485, 2891, 3479, 4189, 4655, 5605, 6745, 7847, 9443, 14455, 17395, 20945, 29323, 39235, 47215, 54929, 66101, 79591, 146615, 205261, 274645, 330505, 397955, 557137, 1026305, 2785685, 3899959, 19499795]

約数ペア:

[(1, 19499795), (5, 3899959), (7, 2785685), (19, 1026305), (35, 557137), (49, 397955), (59, 330505), (71, 274645), (95, 205261), (133, 146615), (245, 79591), (295, 66101), (355, 54929), (413, 47215), (497, 39235), (665, 29323), (931, 20945), (1121, 17395), (1349, 14455), (2065, 9443), (2485, 7847), (2891, 6745), (3479, 5605), (4189, 4655)]