18389264

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{251}}^1$

素因数の和:519

約数の個数: 40

約数和(自身を含む): 37810080

約数和(自身を除く): 19420816

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 241, 251, 304, 482, 502, 964, 1004, 1928, 2008, 3856, 4016, 4579, 4769, 9158, 9538, 18316, 19076, 36632, 38152, 60491, 73264, 76304, 120982, 241964, 483928, 967856, 1149329, 2298658, 4597316, 9194632, 18389264]

約数ペア:

[(1, 18389264), (2, 9194632), (4, 4597316), (8, 2298658), (16, 1149329), (19, 967856), (38, 483928), (76, 241964), (152, 120982), (241, 76304), (251, 73264), (304, 60491), (482, 38152), (502, 36632), (964, 19076), (1004, 18316), (1928, 9538), (2008, 9158), (3856, 4769), (4016, 4579)]