25075780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{17659}}^1$

素因数の和:17739

約数の個数: 24

約数和(自身を含む): 53403840

約数和(自身を除く): 28328060

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 17659, 35318, 70636, 88295, 176590, 353180, 1253789, 2507578, 5015156, 6268945, 12537890, 25075780]

約数ペア:

[(1, 25075780), (2, 12537890), (4, 6268945), (5, 5015156), (10, 2507578), (20, 1253789), (71, 353180), (142, 176590), (284, 88295), (355, 70636), (710, 35318), (1420, 17659)]