28681475

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{307}}^1$

素因数の和:455

約数の個数: 24

約数和(自身を含む): 37008048

約数和(自身を除く): 8326573

約数列:

[1, 5, 25, 37, 101, 185, 307, 505, 925, 1535, 2525, 3737, 7675, 11359, 18685, 31007, 56795, 93425, 155035, 283975, 775175, 1147259, 5736295, 28681475]

約数ペア:

[(1, 28681475), (5, 5736295), (25, 1147259), (37, 775175), (101, 283975), (185, 155035), (307, 93425), (505, 56795), (925, 31007), (1535, 18685), (2525, 11359), (3737, 7675)]