20561270

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{911}}^1$

素因数の和:1016

約数の個数: 32

約数和(自身を含む): 38676096

約数和(自身を除く): 18114826

約数列:

[1, 2, 5, 10, 37, 61, 74, 122, 185, 305, 370, 610, 911, 1822, 2257, 4514, 4555, 9110, 11285, 22570, 33707, 55571, 67414, 111142, 168535, 277855, 337070, 555710, 2056127, 4112254, 10280635, 20561270]

約数ペア:

[(1, 20561270), (2, 10280635), (5, 4112254), (10, 2056127), (37, 555710), (61, 337070), (74, 277855), (122, 168535), (185, 111142), (305, 67414), (370, 55571), (610, 33707), (911, 22570), (1822, 11285), (2257, 9110), (4514, 4555)]