15891990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2689}}^1$

素因数の和:2896

約数の個数: 32

約数和(自身を含む): 38348640

約数和(自身を除く): 22456650

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 197, 394, 591, 985, 1182, 1970, 2689, 2955, 5378, 5910, 8067, 13445, 16134, 26890, 40335, 80670, 529733, 1059466, 1589199, 2648665, 3178398, 5297330, 7945995, 15891990]

約数ペア:

[(1, 15891990), (2, 7945995), (3, 5297330), (5, 3178398), (6, 2648665), (10, 1589199), (15, 1059466), (30, 529733), (197, 80670), (394, 40335), (591, 26890), (985, 16134), (1182, 13445), (1970, 8067), (2689, 5910), (2955, 5378)]