1287351415

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{673}}^1$

素因数の和:800

約数の個数: 64

約数和(自身を含む): 1913167872

約数和(自身を除く): 625816457

約数列:

[1, 5, 7, 31, 35, 41, 43, 155, 205, 215, 217, 287, 301, 673, 1085, 1271, 1333, 1435, 1505, 1763, 3365, 4711, 6355, 6665, 8815, 8897, 9331, 12341, 20863, 23555, 27593, 28939, 44485, 46655, 54653, 61705, 104315, 137965, 144695, 146041, 193151, 202573, 273265, 382571, 730205, 855383, 897109, 965755, 1012865, 1186499, 1912855, 4276915, 4485545, 5932495, 5987681, 6279763, 8305493, 29938405, 31398815, 36781469, 41527465, 183907345, 257470283, 1287351415]

約数ペア:

[(1, 1287351415), (5, 257470283), (7, 183907345), (31, 41527465), (35, 36781469), (41, 31398815), (43, 29938405), (155, 8305493), (205, 6279763), (215, 5987681), (217, 5932495), (287, 4485545), (301, 4276915), (673, 1912855), (1085, 1186499), (1271, 1012865), (1333, 965755), (1435, 897109), (1505, 855383), (1763, 730205), (3365, 382571), (4711, 273265), (6355, 202573), (6665, 193151), (8815, 146041), (8897, 144695), (9331, 137965), (12341, 104315), (20863, 61705), (23555, 54653), (27593, 46655), (28939, 44485)]