81725580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{454031}}^1$

素因数の和:454046

約数の個数: 36

約数和(自身を含む): 247901472

約数和(自身を除く): 166175892

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 454031, 908062, 1362093, 1816124, 2270155, 2724186, 4086279, 4540310, 5448372, 6810465, 8172558, 9080620, 13620930, 16345116, 20431395, 27241860, 40862790, 81725580]

約数ペア:

[(1, 81725580), (2, 40862790), (3, 27241860), (4, 20431395), (5, 16345116), (6, 13620930), (9, 9080620), (10, 8172558), (12, 6810465), (15, 5448372), (18, 4540310), (20, 4086279), (30, 2724186), (36, 2270155), (45, 1816124), (60, 1362093), (90, 908062), (180, 454031)]