663662020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{249497}}^1$

素因数の和:249532

約数の個数: 48

約数和(自身を含む): 1676626560

約数和(自身を除く): 1012964540

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 249497, 498994, 997988, 1247485, 1746479, 2494970, 3492958, 4740443, 4989940, 6985916, 8732395, 9480886, 17464790, 18961772, 23702215, 33183101, 34929580, 47404430, 66366202, 94808860, 132732404, 165915505, 331831010, 663662020]

約数ペア:

[(1, 663662020), (2, 331831010), (4, 165915505), (5, 132732404), (7, 94808860), (10, 66366202), (14, 47404430), (19, 34929580), (20, 33183101), (28, 23702215), (35, 18961772), (38, 17464790), (70, 9480886), (76, 8732395), (95, 6985916), (133, 4989940), (140, 4740443), (190, 3492958), (266, 2494970), (380, 1746479), (532, 1247485), (665, 997988), (1330, 498994), (2660, 249497)]