640531206

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{739}}^1\times {\mathrm{2293}}^1$

素因数の和:3050

約数の個数: 64

約数和(自身を含む): 1629657600

約数和(自身を除く): 989126394

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 739, 1478, 2217, 2293, 4434, 4586, 5173, 6651, 6879, 10346, 13302, 13758, 15519, 16051, 19953, 20637, 31038, 32102, 39906, 41274, 46557, 48153, 61911, 93114, 96306, 123822, 139671, 144459, 279342, 288918, 433377, 866754, 1694527, 3389054, 5083581, 10167162, 11861689, 15250743, 23723378, 30501486, 35585067, 45752229, 71170134, 91504458, 106755201, 213510402, 320265603, 640531206]

約数ペア:

[(1, 640531206), (2, 320265603), (3, 213510402), (6, 106755201), (7, 91504458), (9, 71170134), (14, 45752229), (18, 35585067), (21, 30501486), (27, 23723378), (42, 15250743), (54, 11861689), (63, 10167162), (126, 5083581), (189, 3389054), (378, 1694527), (739, 866754), (1478, 433377), (2217, 288918), (2293, 279342), (4434, 144459), (4586, 139671), (5173, 123822), (6651, 96306), (6879, 93114), (10346, 61911), (13302, 48153), (13758, 46557), (15519, 41274), (16051, 39906), (19953, 32102), (20637, 31038)]