1311877040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1\times {\mathrm{2473}}^1$

素因数の和:2854

約数の個数: 80

約数和(自身を含む): 3221148000

約数和(自身を除く): 1909270960

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 349, 380, 698, 760, 1396, 1520, 1745, 2473, 2792, 3490, 4946, 5584, 6631, 6980, 9892, 12365, 13262, 13960, 19784, 24730, 26524, 27920, 33155, 39568, 46987, 49460, 53048, 66310, 93974, 98920, 106096, 132620, 187948, 197840, 234935, 265240, 375896, 469870, 530480, 751792, 863077, 939740, 1726154, 1879480, 3452308, 3758960, 4315385, 6904616, 8630770, 13809232, 16398463, 17261540, 32796926, 34523080, 65593852, 69046160, 81992315, 131187704, 163984630, 262375408, 327969260, 655938520, 1311877040]

約数ペア:

[(1, 1311877040), (2, 655938520), (4, 327969260), (5, 262375408), (8, 163984630), (10, 131187704), (16, 81992315), (19, 69046160), (20, 65593852), (38, 34523080), (40, 32796926), (76, 17261540), (80, 16398463), (95, 13809232), (152, 8630770), (190, 6904616), (304, 4315385), (349, 3758960), (380, 3452308), (698, 1879480), (760, 1726154), (1396, 939740), (1520, 863077), (1745, 751792), (2473, 530480), (2792, 469870), (3490, 375896), (4946, 265240), (5584, 234935), (6631, 197840), (6980, 187948), (9892, 132620), (12365, 106096), (13262, 98920), (13960, 93974), (19784, 66310), (24730, 53048), (26524, 49460), (27920, 46987), (33155, 39568)]