1640278864

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{861491}}^1$

素因数の和:861523

約数の個数: 40

約数和(自身を含む): 3845700288

約数和(自身を除く): 2205421424

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 861491, 1722982, 3445964, 6030437, 6891928, 12060874, 13783856, 14645347, 24121748, 29290694, 48243496, 58581388, 96486992, 102517429, 117162776, 205034858, 234325552, 410069716, 820139432, 1640278864]

約数ペア:

[(1, 1640278864), (2, 820139432), (4, 410069716), (7, 234325552), (8, 205034858), (14, 117162776), (16, 102517429), (17, 96486992), (28, 58581388), (34, 48243496), (56, 29290694), (68, 24121748), (112, 14645347), (119, 13783856), (136, 12060874), (238, 6891928), (272, 6030437), (476, 3445964), (952, 1722982), (1904, 861491)]