289738030

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{199}}^1$

素因数の和:401

約数の個数: 64

約数和(自身を含む): 564480000

約数和(自身を除く): 274741970

約数列:

[1, 2, 5, 10, 19, 38, 79, 95, 97, 158, 190, 194, 199, 395, 398, 485, 790, 970, 995, 1501, 1843, 1990, 3002, 3686, 3781, 7505, 7562, 7663, 9215, 15010, 15326, 15721, 18430, 18905, 19303, 31442, 37810, 38315, 38606, 76630, 78605, 96515, 145597, 157210, 193030, 291194, 298699, 366757, 597398, 727985, 733514, 1455970, 1493495, 1524937, 1833785, 2986990, 3049874, 3667570, 7624685, 15249370, 28973803, 57947606, 144869015, 289738030]

約数ペア:

[(1, 289738030), (2, 144869015), (5, 57947606), (10, 28973803), (19, 15249370), (38, 7624685), (79, 3667570), (95, 3049874), (97, 2986990), (158, 1833785), (190, 1524937), (194, 1493495), (199, 1455970), (395, 733514), (398, 727985), (485, 597398), (790, 366757), (970, 298699), (995, 291194), (1501, 193030), (1843, 157210), (1990, 145597), (3002, 96515), (3686, 78605), (3781, 76630), (7505, 38606), (7562, 38315), (7663, 37810), (9215, 31442), (15010, 19303), (15326, 18905), (15721, 18430)]