31911295

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{28879}}^1$

素因数の和:28914

約数の個数: 16

約数和(自身を含む): 43666560

約数和(自身を除く): 11755265

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 28879, 144395, 375427, 490943, 1877135, 2454715, 6382259, 31911295]

約数ペア:

[(1, 31911295), (5, 6382259), (13, 2454715), (17, 1877135), (65, 490943), (85, 375427), (221, 144395), (1105, 28879)]