19862525

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1$

素因数の和:353

約数の個数: 24

約数和(自身を含む): 25656840

約数和(自身を除く): 5794315

約数列:

[1, 5, 25, 37, 109, 185, 197, 545, 925, 985, 2725, 4033, 4925, 7289, 20165, 21473, 36445, 100825, 107365, 182225, 536825, 794501, 3972505, 19862525]

約数ペア:

[(1, 19862525), (5, 3972505), (25, 794501), (37, 536825), (109, 182225), (185, 107365), (197, 100825), (545, 36445), (925, 21473), (985, 20165), (2725, 7289), (4033, 4925)]