668041280

素因数分解:

$2^6\times 5^1\times {\mathrm{157}}^1\times {\mathrm{13297}}^1$

素因数の和:13471

約数の個数: 56

約数和(自身を含む): 1601026008

約数和(自身を除く): 932984728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 157, 160, 314, 320, 628, 785, 1256, 1570, 2512, 3140, 5024, 6280, 10048, 12560, 13297, 25120, 26594, 50240, 53188, 66485, 106376, 132970, 212752, 265940, 425504, 531880, 851008, 1063760, 2087629, 2127520, 4175258, 4255040, 8350516, 10438145, 16701032, 20876290, 33402064, 41752580, 66804128, 83505160, 133608256, 167010320, 334020640, 668041280]

約数ペア:

[(1, 668041280), (2, 334020640), (4, 167010320), (5, 133608256), (8, 83505160), (10, 66804128), (16, 41752580), (20, 33402064), (32, 20876290), (40, 16701032), (64, 10438145), (80, 8350516), (157, 4255040), (160, 4175258), (314, 2127520), (320, 2087629), (628, 1063760), (785, 851008), (1256, 531880), (1570, 425504), (2512, 265940), (3140, 212752), (5024, 132970), (6280, 106376), (10048, 66485), (12560, 53188), (13297, 50240), (25120, 26594)]