20411225

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{443}}^1$

素因数の和:569

約数の個数: 24

約数和(自身を含む): 26977440

約数和(自身を除く): 6566215

約数列:

[1, 5, 19, 25, 95, 97, 443, 475, 485, 1843, 2215, 2425, 8417, 9215, 11075, 42085, 42971, 46075, 210425, 214855, 816449, 1074275, 4082245, 20411225]

約数ペア:

[(1, 20411225), (5, 4082245), (19, 1074275), (25, 816449), (95, 214855), (97, 210425), (443, 46075), (475, 42971), (485, 42085), (1843, 11075), (2215, 9215), (2425, 8417)]