81843025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{359}}^1\times {\mathrm{829}}^1$

素因数の和:1209

約数の個数: 24

約数和(自身を含む): 111153600

約数和(自身を除く): 29310575

約数列:

[1, 5, 11, 25, 55, 275, 359, 829, 1795, 3949, 4145, 8975, 9119, 19745, 20725, 45595, 98725, 227975, 297611, 1488055, 3273721, 7440275, 16368605, 81843025]

約数ペア:

[(1, 81843025), (5, 16368605), (11, 7440275), (25, 3273721), (55, 1488055), (275, 297611), (359, 227975), (829, 98725), (1795, 45595), (3949, 20725), (4145, 19745), (8975, 9119)]