19858325

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{431}}^1$

素因数の和:557

約数の個数: 24

約数和(自身を含む): 26248320

約数和(自身を除く): 6389995

約数列:

[1, 5, 19, 25, 95, 97, 431, 475, 485, 1843, 2155, 2425, 8189, 9215, 10775, 40945, 41807, 46075, 204725, 209035, 794333, 1045175, 3971665, 19858325]

約数ペア:

[(1, 19858325), (5, 3971665), (19, 1045175), (25, 794333), (95, 209035), (97, 204725), (431, 46075), (475, 41807), (485, 40945), (1843, 10775), (2155, 9215), (2425, 8189)]