30847120

素因数分解:

$2^4\times 5^1\times {\mathrm{385589}}^1$

素因数の和:385602

約数の個数: 20

約数和(自身を含む): 71719740

約数和(自身を除く): 40872620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 385589, 771178, 1542356, 1927945, 3084712, 3855890, 6169424, 7711780, 15423560, 30847120]

約数ペア:

[(1, 30847120), (2, 15423560), (4, 7711780), (5, 6169424), (8, 3855890), (10, 3084712), (16, 1927945), (20, 1542356), (40, 771178), (80, 385589)]