81179820

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{50111}}^1$

素因数の和:50132

約数の個数: 60

約数和(自身を含む): 254669184

約数和(自身を除く): 173489364

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 50111, 100222, 150333, 200444, 250555, 300666, 450999, 501110, 601332, 751665, 901998, 1002220, 1352997, 1503330, 1803996, 2254995, 2705994, 3006660, 4058991, 4509990, 5411988, 6764985, 8117982, 9019980, 13529970, 16235964, 20294955, 27059940, 40589910, 81179820]

約数ペア:

[(1, 81179820), (2, 40589910), (3, 27059940), (4, 20294955), (5, 16235964), (6, 13529970), (9, 9019980), (10, 8117982), (12, 6764985), (15, 5411988), (18, 4509990), (20, 4058991), (27, 3006660), (30, 2705994), (36, 2254995), (45, 1803996), (54, 1503330), (60, 1352997), (81, 1002220), (90, 901998), (108, 751665), (135, 601332), (162, 501110), (180, 450999), (270, 300666), (324, 250555), (405, 200444), (540, 150333), (810, 100222), (1620, 50111)]