20123351630

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1\times {\mathrm{6737}}^1$

素因数の和:7041

約数の個数: 64

約数和(自身を含む): 38810880000

約数和(自身を除く): 18687528370

約数列:

[1, 2, 5, 10, 19, 38, 79, 95, 158, 190, 199, 395, 398, 790, 995, 1501, 1990, 3002, 3781, 6737, 7505, 7562, 13474, 15010, 15721, 18905, 31442, 33685, 37810, 67370, 78605, 128003, 157210, 256006, 298699, 532223, 597398, 640015, 1064446, 1280030, 1340663, 1493495, 2661115, 2681326, 2986990, 5322230, 6703315, 10112237, 13406630, 20224474, 25472597, 50561185, 50945194, 101122370, 105912377, 127362985, 211824754, 254725970, 529561885, 1059123770, 2012335163, 4024670326, 10061675815, 20123351630]

約数ペア:

[(1, 20123351630), (2, 10061675815), (5, 4024670326), (10, 2012335163), (19, 1059123770), (38, 529561885), (79, 254725970), (95, 211824754), (158, 127362985), (190, 105912377), (199, 101122370), (395, 50945194), (398, 50561185), (790, 25472597), (995, 20224474), (1501, 13406630), (1990, 10112237), (3002, 6703315), (3781, 5322230), (6737, 2986990), (7505, 2681326), (7562, 2661115), (13474, 1493495), (15010, 1340663), (15721, 1280030), (18905, 1064446), (31442, 640015), (33685, 597398), (37810, 532223), (67370, 298699), (78605, 256006), (128003, 157210)]