28771015

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1709}}^1$

素因数の和:1771

約数の個数: 32

約数和(自身を含む): 43666560

約数和(自身を除く): 14895545

約数列:

[1, 5, 7, 13, 35, 37, 65, 91, 185, 259, 455, 481, 1295, 1709, 2405, 3367, 8545, 11963, 16835, 22217, 59815, 63233, 111085, 155519, 316165, 442631, 777595, 822029, 2213155, 4110145, 5754203, 28771015]

約数ペア:

[(1, 28771015), (5, 5754203), (7, 4110145), (13, 2213155), (35, 822029), (37, 777595), (65, 442631), (91, 316165), (185, 155519), (259, 111085), (455, 63233), (481, 59815), (1295, 22217), (1709, 16835), (2405, 11963), (3367, 8545)]