18385616

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{307}}^1$

素因数の和:531

約数の個数: 40

約数和(自身を含む): 37810080

約数和(自身を除く): 19424464

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 197, 304, 307, 394, 614, 788, 1228, 1576, 2456, 3152, 3743, 4912, 5833, 7486, 11666, 14972, 23332, 29944, 46664, 59888, 60479, 93328, 120958, 241916, 483832, 967664, 1149101, 2298202, 4596404, 9192808, 18385616]

約数ペア:

[(1, 18385616), (2, 9192808), (4, 4596404), (8, 2298202), (16, 1149101), (19, 967664), (38, 483832), (76, 241916), (152, 120958), (197, 93328), (304, 60479), (307, 59888), (394, 46664), (614, 29944), (788, 23332), (1228, 14972), (1576, 11666), (2456, 7486), (3152, 5833), (3743, 4912)]