28012995

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{467}}^1$

素因数の和:552

約数の個数: 48

約数和(自身を含む): 51397632

約数和(自身を除く): 23384637

約数列:

[1, 3, 5, 9, 15, 31, 43, 45, 93, 129, 155, 215, 279, 387, 465, 467, 645, 1333, 1395, 1401, 1935, 2335, 3999, 4203, 6665, 7005, 11997, 14477, 19995, 20081, 21015, 43431, 59985, 60243, 72385, 100405, 130293, 180729, 217155, 301215, 622511, 651465, 903645, 1867533, 3112555, 5602599, 9337665, 28012995]

約数ペア:

[(1, 28012995), (3, 9337665), (5, 5602599), (9, 3112555), (15, 1867533), (31, 903645), (43, 651465), (45, 622511), (93, 301215), (129, 217155), (155, 180729), (215, 130293), (279, 100405), (387, 72385), (465, 60243), (467, 59985), (645, 43431), (1333, 21015), (1395, 20081), (1401, 19995), (1935, 14477), (2335, 11997), (3999, 7005), (4203, 6665)]