20121571325

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{239}}^1\times {\mathrm{55207}}^1$

素因数の和:55517

約数の個数: 24

約数和(自身を含む): 25466346240

約数和(自身を除く): 5344774915

約数列:

[1, 5, 25, 61, 239, 305, 1195, 1525, 5975, 14579, 55207, 72895, 276035, 364475, 1380175, 3367627, 13194473, 16838135, 65972365, 84190675, 329861825, 804862853, 4024314265, 20121571325]

約数ペア:

[(1, 20121571325), (5, 4024314265), (25, 804862853), (61, 329861825), (239, 84190675), (305, 65972365), (1195, 16838135), (1525, 13194473), (5975, 3367627), (14579, 1380175), (55207, 364475), (72895, 276035)]