25281460

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{11597}}^1$

素因数の和:11715

約数の個数: 24

約数和(自身を含む): 53582760

約数和(自身を除く): 28301300

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 11597, 23194, 46388, 57985, 115970, 231940, 1264073, 2528146, 5056292, 6320365, 12640730, 25281460]

約数ペア:

[(1, 25281460), (2, 12640730), (4, 6320365), (5, 5056292), (10, 2528146), (20, 1264073), (109, 231940), (218, 115970), (436, 57985), (545, 46388), (1090, 23194), (2180, 11597)]