639343712

素因数分解:

$2^5\times 7^1\times {\mathrm{331}}^1\times {\mathrm{8623}}^1$

素因数の和:8971

約数の個数: 48

約数和(自身を含む): 1443036672

約数和(自身を除く): 803692960

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 331, 662, 1324, 2317, 2648, 4634, 5296, 8623, 9268, 10592, 17246, 18536, 34492, 37072, 60361, 68984, 74144, 120722, 137968, 241444, 275936, 482888, 965776, 1931552, 2854213, 5708426, 11416852, 19979491, 22833704, 39958982, 45667408, 79917964, 91334816, 159835928, 319671856, 639343712]

約数ペア:

[(1, 639343712), (2, 319671856), (4, 159835928), (7, 91334816), (8, 79917964), (14, 45667408), (16, 39958982), (28, 22833704), (32, 19979491), (56, 11416852), (112, 5708426), (224, 2854213), (331, 1931552), (662, 965776), (1324, 482888), (2317, 275936), (2648, 241444), (4634, 137968), (5296, 120722), (8623, 74144), (9268, 68984), (10592, 60361), (17246, 37072), (18536, 34492)]