31031308

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{389}}^1$

素因数の和:455

約数の個数: 72

約数和(自身を含む): 70958160

約数和(自身を除く): 39926852

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 37, 44, 49, 74, 77, 98, 148, 154, 196, 259, 308, 389, 407, 518, 539, 778, 814, 1036, 1078, 1556, 1628, 1813, 2156, 2723, 2849, 3626, 4279, 5446, 5698, 7252, 8558, 10892, 11396, 14393, 17116, 19061, 19943, 28786, 29953, 38122, 39886, 57572, 59906, 76244, 79772, 100751, 119812, 158323, 201502, 209671, 316646, 403004, 419342, 633292, 705257, 838684, 1108261, 1410514, 2216522, 2821028, 4433044, 7757827, 15515654, 31031308]

約数ペア:

[(1, 31031308), (2, 15515654), (4, 7757827), (7, 4433044), (11, 2821028), (14, 2216522), (22, 1410514), (28, 1108261), (37, 838684), (44, 705257), (49, 633292), (74, 419342), (77, 403004), (98, 316646), (148, 209671), (154, 201502), (196, 158323), (259, 119812), (308, 100751), (389, 79772), (407, 76244), (518, 59906), (539, 57572), (778, 39886), (814, 38122), (1036, 29953), (1078, 28786), (1556, 19943), (1628, 19061), (1813, 17116), (2156, 14393), (2723, 11396), (2849, 10892), (3626, 8558), (4279, 7252), (5446, 5698)]