81473880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{678949}}^1$

素因数の和:678963

約数の個数: 32

約数和(自身を含む): 244422000

約数和(自身を除く): 162948120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 678949, 1357898, 2036847, 2715796, 3394745, 4073694, 5431592, 6789490, 8147388, 10184235, 13578980, 16294776, 20368470, 27157960, 40736940, 81473880]

約数ペア:

[(1, 81473880), (2, 40736940), (3, 27157960), (4, 20368470), (5, 16294776), (6, 13578980), (8, 10184235), (10, 8147388), (12, 6789490), (15, 5431592), (20, 4073694), (24, 3394745), (30, 2715796), (40, 2036847), (60, 1357898), (120, 678949)]