128214156

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{139}}^2$

素因数の和:371

約数の個数: 72

約数和(自身を含む): 348741120

約数和(自身を除く): 220526964

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 79, 84, 139, 158, 237, 278, 316, 417, 474, 553, 556, 834, 948, 973, 1106, 1659, 1668, 1946, 2212, 2919, 3318, 3892, 5838, 6636, 10981, 11676, 19321, 21962, 32943, 38642, 43924, 57963, 65886, 76867, 77284, 115926, 131772, 135247, 153734, 230601, 231852, 270494, 307468, 405741, 461202, 540988, 811482, 922404, 1526359, 1622964, 3052718, 4579077, 6105436, 9158154, 10684513, 18316308, 21369026, 32053539, 42738052, 64107078, 128214156]

約数ペア:

[(1, 128214156), (2, 64107078), (3, 42738052), (4, 32053539), (6, 21369026), (7, 18316308), (12, 10684513), (14, 9158154), (21, 6105436), (28, 4579077), (42, 3052718), (79, 1622964), (84, 1526359), (139, 922404), (158, 811482), (237, 540988), (278, 461202), (316, 405741), (417, 307468), (474, 270494), (553, 231852), (556, 230601), (834, 153734), (948, 135247), (973, 131772), (1106, 115926), (1659, 77284), (1668, 76867), (1946, 65886), (2212, 57963), (2919, 43924), (3318, 38642), (3892, 32943), (5838, 21962), (6636, 19321), (10981, 11676)]