19684760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{439}}^1$

素因数の和:528

約数の個数: 64

約数和(自身を含む): 47520000

約数和(自身を除く): 27835240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 59, 76, 95, 118, 152, 190, 236, 295, 380, 439, 472, 590, 760, 878, 1121, 1180, 1756, 2195, 2242, 2360, 3512, 4390, 4484, 5605, 8341, 8780, 8968, 11210, 16682, 17560, 22420, 25901, 33364, 41705, 44840, 51802, 66728, 83410, 103604, 129505, 166820, 207208, 259010, 333640, 492119, 518020, 984238, 1036040, 1968476, 2460595, 3936952, 4921190, 9842380, 19684760]

約数ペア:

[(1, 19684760), (2, 9842380), (4, 4921190), (5, 3936952), (8, 2460595), (10, 1968476), (19, 1036040), (20, 984238), (38, 518020), (40, 492119), (59, 333640), (76, 259010), (95, 207208), (118, 166820), (152, 129505), (190, 103604), (236, 83410), (295, 66728), (380, 51802), (439, 44840), (472, 41705), (590, 33364), (760, 25901), (878, 22420), (1121, 17560), (1180, 16682), (1756, 11210), (2195, 8968), (2242, 8780), (2360, 8341), (3512, 5605), (4390, 4484)]