7920220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:203

約数の個数: 96

約数和(自身を含む): 21450240

約数和(自身を除く): 13530020

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 37, 44, 55, 70, 74, 77, 110, 139, 140, 148, 154, 185, 220, 259, 278, 308, 370, 385, 407, 518, 556, 695, 740, 770, 814, 973, 1036, 1295, 1390, 1529, 1540, 1628, 1946, 2035, 2590, 2780, 2849, 3058, 3892, 4070, 4865, 5143, 5180, 5698, 6116, 7645, 8140, 9730, 10286, 10703, 11396, 14245, 15290, 19460, 20572, 21406, 25715, 28490, 30580, 36001, 42812, 51430, 53515, 56573, 56980, 72002, 102860, 107030, 113146, 144004, 180005, 214060, 226292, 282865, 360010, 396011, 565730, 720020, 792022, 1131460, 1584044, 1980055, 3960110, 7920220]

約数ペア:

[(1, 7920220), (2, 3960110), (4, 1980055), (5, 1584044), (7, 1131460), (10, 792022), (11, 720020), (14, 565730), (20, 396011), (22, 360010), (28, 282865), (35, 226292), (37, 214060), (44, 180005), (55, 144004), (70, 113146), (74, 107030), (77, 102860), (110, 72002), (139, 56980), (140, 56573), (148, 53515), (154, 51430), (185, 42812), (220, 36001), (259, 30580), (278, 28490), (308, 25715), (370, 21406), (385, 20572), (407, 19460), (518, 15290), (556, 14245), (695, 11396), (740, 10703), (770, 10286), (814, 9730), (973, 8140), (1036, 7645), (1295, 6116), (1390, 5698), (1529, 5180), (1540, 5143), (1628, 4865), (1946, 4070), (2035, 3892), (2590, 3058), (2780, 2849)]