1315205380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{1669}}^1$

素因数の和:1781

約数の個数: 72

約数和(自身を含む): 2925258840

約数和(自身を除く): 1610053460

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 62, 82, 124, 155, 164, 205, 310, 410, 620, 820, 961, 1271, 1669, 1922, 2542, 3338, 3844, 4805, 5084, 6355, 6676, 8345, 9610, 12710, 16690, 19220, 25420, 33380, 39401, 51739, 68429, 78802, 103478, 136858, 157604, 197005, 206956, 258695, 273716, 342145, 394010, 517390, 684290, 788020, 1034780, 1368580, 1603909, 2121299, 3207818, 4242598, 6415636, 8019545, 8485196, 10606495, 16039090, 21212990, 32078180, 42425980, 65760269, 131520538, 263041076, 328801345, 657602690, 1315205380]

約数ペア:

[(1, 1315205380), (2, 657602690), (4, 328801345), (5, 263041076), (10, 131520538), (20, 65760269), (31, 42425980), (41, 32078180), (62, 21212990), (82, 16039090), (124, 10606495), (155, 8485196), (164, 8019545), (205, 6415636), (310, 4242598), (410, 3207818), (620, 2121299), (820, 1603909), (961, 1368580), (1271, 1034780), (1669, 788020), (1922, 684290), (2542, 517390), (3338, 394010), (3844, 342145), (4805, 273716), (5084, 258695), (6355, 206956), (6676, 197005), (8345, 157604), (9610, 136858), (12710, 103478), (16690, 78802), (19220, 68429), (25420, 51739), (33380, 39401)]