219351608

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{409}}^1$

素因数の和:640

約数の個数: 64

約数和(自身を含む): 481963200

約数和(自身を除く): 262611592

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 122, 157, 244, 314, 409, 427, 488, 628, 818, 854, 1099, 1256, 1636, 1708, 2198, 2863, 3272, 3416, 4396, 5726, 8792, 9577, 11452, 19154, 22904, 24949, 38308, 49898, 64213, 67039, 76616, 99796, 128426, 134078, 174643, 199592, 256852, 268156, 349286, 449491, 513704, 536312, 698572, 898982, 1397144, 1797964, 3595928, 3916993, 7833986, 15667972, 27418951, 31335944, 54837902, 109675804, 219351608]

約数ペア:

[(1, 219351608), (2, 109675804), (4, 54837902), (7, 31335944), (8, 27418951), (14, 15667972), (28, 7833986), (56, 3916993), (61, 3595928), (122, 1797964), (157, 1397144), (244, 898982), (314, 698572), (409, 536312), (427, 513704), (488, 449491), (628, 349286), (818, 268156), (854, 256852), (1099, 199592), (1256, 174643), (1636, 134078), (1708, 128426), (2198, 99796), (2863, 76616), (3272, 67039), (3416, 64213), (4396, 49898), (5726, 38308), (8792, 24949), (9577, 22904), (11452, 19154)]