81187980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1353133}}^1$

素因数の和:1353145

約数の個数: 24

約数和(自身を含む): 227326512

約数和(自身を除く): 146138532

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1353133, 2706266, 4059399, 5412532, 6765665, 8118798, 13531330, 16237596, 20296995, 27062660, 40593990, 81187980]

約数ペア:

[(1, 81187980), (2, 40593990), (3, 27062660), (4, 20296995), (5, 16237596), (6, 13531330), (10, 8118798), (12, 6765665), (15, 5412532), (20, 4059399), (30, 2706266), (60, 1353133)]