81788728

素因数分解:

$2^3\times 7^1\times {\mathrm{487}}^1\times {\mathrm{2999}}^1$

素因数の和:3499

約数の個数: 32

約数和(自身を含む): 175680000

約数和(自身を除く): 93891272

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 487, 974, 1948, 2999, 3409, 3896, 5998, 6818, 11996, 13636, 20993, 23992, 27272, 41986, 83972, 167944, 1460513, 2921026, 5842052, 10223591, 11684104, 20447182, 40894364, 81788728]

約数ペア:

[(1, 81788728), (2, 40894364), (4, 20447182), (7, 11684104), (8, 10223591), (14, 5842052), (28, 2921026), (56, 1460513), (487, 167944), (974, 83972), (1948, 41986), (2999, 27272), (3409, 23992), (3896, 20993), (5998, 13636), (6818, 11996)]