81253028

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{487}}^1\times {\mathrm{787}}^1$

素因数の和:1331

約数の個数: 24

約数和(自身を含む): 145357632

約数和(自身を除く): 64104604

約数列:

[1, 2, 4, 53, 106, 212, 487, 787, 974, 1574, 1948, 3148, 25811, 41711, 51622, 83422, 103244, 166844, 383269, 766538, 1533076, 20313257, 40626514, 81253028]

約数ペア:

[(1, 81253028), (2, 40626514), (4, 20313257), (53, 1533076), (106, 766538), (212, 383269), (487, 166844), (787, 103244), (974, 83422), (1574, 51622), (1948, 41711), (3148, 25811)]