321005776

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{220471}}^1$

素因数の和:220499

約数の個数: 40

約数和(自身を含む): 765478784

約数和(自身を除く): 444473008

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 220471, 440942, 881884, 1543297, 1763768, 2866123, 3086594, 3527536, 5732246, 6173188, 11464492, 12346376, 20062861, 22928984, 24692752, 40125722, 45857968, 80251444, 160502888, 321005776]

約数ペア:

[(1, 321005776), (2, 160502888), (4, 80251444), (7, 45857968), (8, 40125722), (13, 24692752), (14, 22928984), (16, 20062861), (26, 12346376), (28, 11464492), (52, 6173188), (56, 5732246), (91, 3527536), (104, 3086594), (112, 2866123), (182, 1763768), (208, 1543297), (364, 881884), (728, 440942), (1456, 220471)]