28027915

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1\times {\mathrm{971}}^1$

素因数の和:1250

約数の個数: 16

約数和(自身を含む): 35271936

約数和(自身を除く): 7244021

約数列:

[1, 5, 23, 115, 251, 971, 1255, 4855, 5773, 22333, 28865, 111665, 243721, 1218605, 5605583, 28027915]

約数ペア:

[(1, 28027915), (5, 5605583), (23, 1218605), (115, 243721), (251, 111665), (971, 28865), (1255, 22333), (4855, 5773)]